Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight

61d71807 · Linus Torvalds <[email protected]> · 2010-03-18 16:48:00 -07:00

* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight:
  backlight: panasonic-laptop - Fix incomplete registration failure handling
  backlight: msi-laptop, msi-wmi: fix incomplete registration failure handling
  backlight: blackfin - Fix missing registration failure handling
  backlight: classmate-laptop - Fix missing registration failure handling
  backlight: mbp_nvidia_bl - add five more MacBook variants
  backlight: Allow properties to be passed at registration
  backlight: Add backlight_device parameter to check_fb
  video: backlight/progear, fix pci device refcounting
  backlight: l4f00242t03: Fix module licence absence.
  backlight: Revert some const qualifiers
  backlight: Add Epson L4F00242T03 LCD driver

Commit: 61d718076e95eb461fd4c3692b702a82e2be0df4
Parents: 5dbc2f54 · ec57af9c

Merge commit. Changes below are compared with the first parent: 5dbc2f54.

Changes

53 files changed · +658 −167

File	Status	Add	Del	Content
drivers/acpi/video.c	modified	+6	−3	View file
drivers/gpu/drm/nouveau/nouveau_backlight.c	modified	+8	−4	View file
drivers/macintosh/via-pmu-backlight.c	modified	+5	−2	View file
drivers/platform/x86/acer-wmi.c	modified	+5	−2	View file
drivers/platform/x86/asus-laptop.c	modified	+5	−2	View file
drivers/platform/x86/asus_acpi.c	modified	+5	−2	View file
drivers/platform/x86/classmate-laptop.c	modified	+8	−4	View file
drivers/platform/x86/compal-laptop.c	modified	+7	−4	View file
drivers/platform/x86/dell-laptop.c	modified	+8	−5	View file
drivers/platform/x86/eeepc-laptop.c	modified	+5	−3	View file
drivers/platform/x86/fujitsu-laptop.c	modified	+9	−5	View file
drivers/platform/x86/msi-laptop.c	modified	+5	−2	View file
drivers/platform/x86/msi-wmi.c	modified	+10	−5	View file
drivers/platform/x86/panasonic-laptop.c	modified	+15	−13	View file
drivers/platform/x86/sony-laptop.c	modified	+5	−3	View file
drivers/platform/x86/thinkpad_acpi.c	modified	+7	−5	View file
drivers/platform/x86/toshiba_acpi.c	modified	+6	−4	View file
drivers/staging/samsung-laptop/samsung-laptop.c	modified	+5	−2	View file
drivers/usb/misc/appledisplay.c	modified	+4	−3	View file
drivers/video/atmel_lcdfb.c	modified	+5	−3	View file
drivers/video/aty/aty128fb.c	modified	+5	−2	View file
drivers/video/aty/atyfb_base.c	modified	+5	−2	View file
drivers/video/aty/radeon_backlight.c	modified	+5	−2	View file
drivers/video/backlight/88pm860x_bl.c	modified	+4	−2	View file
drivers/video/backlight/Kconfig	modified	+7	−0	View file
drivers/video/backlight/Makefile	modified	+1	−0	View file
drivers/video/backlight/adp5520_bl.c	modified	+6	−5	View file
drivers/video/backlight/adx_bl.c	modified	+6	−4	View file
drivers/video/backlight/atmel-pwm-bl.c	modified	+5	−3	View file
drivers/video/backlight/backlight.c	modified	+8	−2	View file
drivers/video/backlight/corgi_lcd.c	modified	+5	−3	View file
drivers/video/backlight/cr_bllcd.c	modified	+4	−4	View file
drivers/video/backlight/da903x_bl.c	modified	+4	−3	View file
drivers/video/backlight/generic_bl.c	modified	+5	−3	View file
drivers/video/backlight/hp680_bl.c	modified	+5	−3	View file
drivers/video/backlight/jornada720_bl.c	modified	+5	−2	View file
drivers/video/backlight/kb3886_bl.c	modified	+6	−2	View file
drivers/video/backlight/l4f00242t03.c	added	+257	−0	View file
drivers/video/backlight/locomolcd.c	modified	+6	−2	View file
drivers/video/backlight/max8925_bl.c	modified	+4	−2	View file
drivers/video/backlight/mbp_nvidia_bl.c	modified	+52	−3	View file
drivers/video/backlight/omap1_bl.c	modified	+5	−2	View file
drivers/video/backlight/progear_bl.c	modified	+17	−6	View file
drivers/video/backlight/pwm_bl.c	modified	+5	−3	View file
drivers/video/backlight/tosa_bl.c	modified	+5	−3	View file
drivers/video/backlight/wm831x_bl.c	modified	+4	−3	View file
drivers/video/bf54x-lq043fb.c	modified	+14	−5	View file
drivers/video/bfin-t350mcqb-fb.c	modified	+14	−5	View file
drivers/video/nvidia/nv_backlight.c	modified	+5	−2	View file
drivers/video/omap2/displays/panel-taal.c	modified	+9	−6	View file
drivers/video/riva/fbdev.c	modified	+5	−2	View file
include/linux/backlight.h	modified	+6	−5	View file
include/linux/spi/l4f00242t03.h	added	+31	−0	View file

Only the first 600 diff lines are shown. Download the complete patch.

drivers/acpi/video.c

View file

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 2ff2b6a..cbe6f39 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -998,6 +998,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
 	}
 
 	if (acpi_video_backlight_support()) {
+		struct backlight_properties props;
 		int result;
 		static int count = 0;
 		char *name;
@@ -1010,12 +1011,14 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
 			return;
 
 		sprintf(name, "acpi_video%d", count++);
-		device->backlight = backlight_device_register(name,
-			NULL, device, &acpi_backlight_ops);
+		memset(&props, 0, sizeof(struct backlight_properties));
+		props.max_brightness = device->brightness->count - 3;
+		device->backlight = backlight_device_register(name, NULL, device,
+							      &acpi_backlight_ops,
+							      &props);
 		kfree(name);
 		if (IS_ERR(device->backlight))
 			return;
-		device->backlight->props.max_brightness = device->brightness->count-3;
 
 		result = sysfs_create_link(&device->backlight->dev.kobj,
 					   &device->dev->dev.kobj, "device");

drivers/gpu/drm/nouveau/nouveau_backlight.c

View file

diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c
index 20564f8..406228f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_backlight.c
+++ b/drivers/gpu/drm/nouveau/nouveau_backlight.c
@@ -89,19 +89,21 @@ static struct backlight_ops nv50_bl_ops = {
 
 static int nouveau_nv40_backlight_init(struct drm_device *dev)
 {
+	struct backlight_properties props;
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct backlight_device *bd;
 
 	if (!(nv_rd32(dev, NV40_PMC_BACKLIGHT) & NV40_PMC_BACKLIGHT_MASK))
 		return 0;
 
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = 31;
 	bd = backlight_device_register("nv_backlight", &dev->pdev->dev, dev,
-				       &nv40_bl_ops);
+				       &nv40_bl_ops, &props);
 	if (IS_ERR(bd))
 		return PTR_ERR(bd);
 
 	dev_priv->backlight = bd;
-	bd->props.max_brightness = 31;
 	bd->props.brightness = nv40_get_intensity(bd);
 	backlight_update_status(bd);
 
@@ -110,19 +112,21 @@ static int nouveau_nv40_backlight_init(struct drm_device *dev)
 
 static int nouveau_nv50_backlight_init(struct drm_device *dev)
 {
+	struct backlight_properties props;
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct backlight_device *bd;
 
 	if (!nv_rd32(dev, NV50_PDISPLAY_SOR_BACKLIGHT))
 		return 0;
 
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = 1025;
 	bd = backlight_device_register("nv_backlight", &dev->pdev->dev, dev,
-				       &nv50_bl_ops);
+				       &nv50_bl_ops, &props);
 	if (IS_ERR(bd))
 		return PTR_ERR(bd);
 
 	dev_priv->backlight = bd;
-	bd->props.max_brightness = 1025;
 	bd->props.brightness = nv50_get_intensity(bd);
 	backlight_update_status(bd);
 	return 0;

drivers/macintosh/via-pmu-backlight.c

View file

diff --git a/drivers/macintosh/via-pmu-backlight.c b/drivers/macintosh/via-pmu-backlight.c
index 4f3c447..1cec02f 100644
--- a/drivers/macintosh/via-pmu-backlight.c
+++ b/drivers/macintosh/via-pmu-backlight.c
@@ -144,6 +144,7 @@ void pmu_backlight_set_sleep(int sleep)
 
 void __init pmu_backlight_init()
 {
+	struct backlight_properties props;
 	struct backlight_device *bd;
 	char name[10];
 	int level, autosave;
@@ -161,13 +162,15 @@ void __init pmu_backlight_init()
 
 	snprintf(name, sizeof(name), "pmubl");
 
-	bd = backlight_device_register(name, NULL, NULL, &pmu_backlight_data);
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
+	bd = backlight_device_register(name, NULL, NULL, &pmu_backlight_data,
+				       &props);
 	if (IS_ERR(bd)) {
 		printk(KERN_ERR "PMU Backlight registration failed\n");
 		return;
 	}
 	uses_pmu_bl = 1;
-	bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
 	pmu_backlight_init_curve(0x7F, 0x46, 0x0E);
 
 	level = bd->props.max_brightness;

drivers/platform/x86/acer-wmi.c

View file

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 226b3e9..cbca40a 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -922,9 +922,13 @@ static struct backlight_ops acer_bl_ops = {
 
 static int __devinit acer_backlight_init(struct device *dev)
 {
+	struct backlight_properties props;
 	struct backlight_device *bd;
 
-	bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops);
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = max_brightness;
+	bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
+				       &props);
 	if (IS_ERR(bd)) {
 		printk(ACER_ERR "Could not register Acer backlight device\n");
 		acer_backlight_device = NULL;
@@ -935,7 +939,6 @@ static int __devinit acer_backlight_init(struct device *dev)
 
 	bd->props.power = FB_BLANK_UNBLANK;
 	bd->props.brightness = read_brightness(bd);
-	bd->props.max_brightness = max_brightness;
 	backlight_update_status(bd);
 	return 0;
 }

drivers/platform/x86/asus-laptop.c

View file

diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index 791fcf3..db5f7db 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -639,12 +639,16 @@ static int asus_backlight_init(struct asus_laptop *asus)
 {
 	struct backlight_device *bd;
 	struct device *dev = &asus->platform_device->dev;
+	struct backlight_properties props;
 
 	if (!acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) &&
 	    !acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL) &&
 	    lcd_switch_handle) {
+		memset(&props, 0, sizeof(struct backlight_properties));
+		props.max_brightness = 15;
+
 		bd = backlight_device_register(ASUS_LAPTOP_FILE, dev,
-					       asus, &asusbl_ops);
+					       asus, &asusbl_ops, &props);
 		if (IS_ERR(bd)) {
 			pr_err("Could not register asus backlight device\n");
 			asus->backlight_device = NULL;
@@ -653,7 +657,6 @@ static int asus_backlight_init(struct asus_laptop *asus)
 
 		asus->backlight_device = bd;
 
-		bd->props.max_brightness = 15;
 		bd->props.power = FB_BLANK_UNBLANK;
 		bd->props.brightness = asus_read_brightness(bd);
 		backlight_update_status(bd);

drivers/platform/x86/asus_acpi.c

View file

diff --git a/drivers/platform/x86/asus_acpi.c b/drivers/platform/x86/asus_acpi.c
index 1381430..ee52035 100644
--- a/drivers/platform/x86/asus_acpi.c
+++ b/drivers/platform/x86/asus_acpi.c
@@ -1481,6 +1481,7 @@ static void asus_acpi_exit(void)
 
 static int __init asus_acpi_init(void)
 {
+	struct backlight_properties props;
 	int result;
 
 	result = acpi_bus_register_driver(&asus_hotk_driver);
@@ -1507,15 +1508,17 @@ static int __init asus_acpi_init(void)
 		return -ENODEV;
 	}
 
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = 15;
 	asus_backlight_device = backlight_device_register("asus", NULL, NULL,
-							  &asus_backlight_data);
+							  &asus_backlight_data,
+							  &props);
 	if (IS_ERR(asus_backlight_device)) {
 		printk(KERN_ERR "Could not register asus backlight device\n");
 		asus_backlight_device = NULL;
 		asus_acpi_exit();
 		return -ENODEV;
 	}
-	asus_backlight_device->props.max_brightness = 15;
 
 	return 0;
 }

drivers/platform/x86/classmate-laptop.c

View file

diff --git a/drivers/platform/x86/classmate-laptop.c b/drivers/platform/x86/classmate-laptop.c
index 035a7dd..c696cf1 100644
--- a/drivers/platform/x86/classmate-laptop.c
+++ b/drivers/platform/x86/classmate-laptop.c
@@ -455,18 +455,22 @@ static int cmpc_bl_update_status(struct backlight_device *bd)
 		return -1;
 }
 
-static struct backlight_ops cmpc_bl_ops = {
+static const struct backlight_ops cmpc_bl_ops = {
 	.get_brightness = cmpc_bl_get_brightness,
 	.update_status = cmpc_bl_update_status
 };
 
 static int cmpc_bl_add(struct acpi_device *acpi)
 {
+	struct backlight_properties props;
 	struct backlight_device *bd;
 
-	bd = backlight_device_register("cmpc_bl", &acpi->dev,
-				       acpi->handle, &cmpc_bl_ops);
-	bd->props.max_brightness = 7;
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = 7;
+	bd = backlight_device_register("cmpc_bl", &acpi->dev, acpi->handle,
+				       &cmpc_bl_ops, &props);
+	if (IS_ERR(bd))
+		return PTR_ERR(bd);
 	dev_set_drvdata(&acpi->dev, bd);
 	return 0;
 }

drivers/platform/x86/compal-laptop.c

View file

diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c
index 2740b40..71ff154 100644
--- a/drivers/platform/x86/compal-laptop.c
+++ b/drivers/platform/x86/compal-laptop.c
@@ -291,12 +291,15 @@ static int __init compal_init(void)
 	/* Register backlight stuff */
 
 	if (!acpi_video_backlight_support()) {
-		compalbl_device = backlight_device_register("compal-laptop", NULL, NULL,
-							    &compalbl_ops);
+		struct backlight_properties props;
+		memset(&props, 0, sizeof(struct backlight_properties));
+		props.max_brightness = COMPAL_LCD_LEVEL_MAX - 1;
+		compalbl_device = backlight_device_register("compal-laptop",
+							    NULL, NULL,
+							    &compalbl_ops,
+							    &props);
 		if (IS_ERR(compalbl_device))
 			return PTR_ERR(compalbl_device);
-
-		compalbl_device->props.max_brightness = COMPAL_LCD_LEVEL_MAX-1;
 	}
 
 	ret = platform_driver_register(&compal_driver);

drivers/platform/x86/dell-laptop.c

View file

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index ef61497..46435ac 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -559,10 +559,14 @@ static int __init dell_init(void)
 	release_buffer();
 
 	if (max_intensity) {
-		dell_backlight_device = backlight_device_register(
-			"dell_backlight",
-			&platform_device->dev, NULL,
-			&dell_ops);
+		struct backlight_properties props;
+		memset(&props, 0, sizeof(struct backlight_properties));
+		props.max_brightness = max_intensity;
+		dell_backlight_device = backlight_device_register("dell_backlight",
+								  &platform_device->dev,
+								  NULL,
+								  &dell_ops,
+								  &props);
 
 		if (IS_ERR(dell_backlight_device)) {
 			ret = PTR_ERR(dell_backlight_device);
@@ -570,7 +574,6 @@ static int __init dell_init(void)
 			goto fail_backlight;
 		}
 
-		dell_backlight_device->props.max_brightness = max_intensity;
 		dell_backlight_device->props.brightness =
 			dell_get_intensity(dell_backlight_device);
 		backlight_update_status(dell_backlight_device);

drivers/platform/x86/eeepc-laptop.c

View file

diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index 9a844ca..3fdf21e 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -1131,18 +1131,20 @@ static int eeepc_backlight_notify(struct eeepc_laptop *eeepc)
 
 static int eeepc_backlight_init(struct eeepc_laptop *eeepc)
 {
+	struct backlight_properties props;
 	struct backlight_device *bd;
 
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = 15;
 	bd = backlight_device_register(EEEPC_LAPTOP_FILE,
-				       &eeepc->platform_device->dev,
-				       eeepc, &eeepcbl_ops);
+				       &eeepc->platform_device->dev, eeepc,
+				       &eeepcbl_ops, &props);
 	if (IS_ERR(bd)) {
 		pr_err("Could not register eeepc backlight device\n");
 		eeepc->backlight_device = NULL;
 		return PTR_ERR(bd);
 	}
 	eeepc->backlight_device = bd;
-	bd->props.max_brightness = 15;
 	bd->props.brightness = read_brightness(bd);
 	bd->props.power = FB_BLANK_UNBLANK;
 	backlight_update_status(bd);

drivers/platform/x86/fujitsu-laptop.c

View file

diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index 5f3320d..c1074b3 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -1126,16 +1126,20 @@ static int __init fujitsu_init(void)
 	/* Register backlight stuff */
 
 	if (!acpi_video_backlight_support()) {
-		fujitsu->bl_device =
-			backlight_device_register("fujitsu-laptop", NULL, NULL,
-						  &fujitsubl_ops);
+		struct backlight_properties props;
+
+		memset(&props, 0, sizeof(struct backlight_properties));
+		max_brightness = fujitsu->max_brightness;
+		props.max_brightness = max_brightness - 1;
+		fujitsu->bl_device = backlight_device_register("fujitsu-laptop",
+							       NULL, NULL,
+							       &fujitsubl_ops,
+							       &props);
 		if (IS_ERR(fujitsu->bl_device)) {
 			ret = PTR_ERR(fujitsu->bl_device);
 			fujitsu->bl_device = NULL;
 			goto fail_sysfs_group;
 		}
-		max_brightness = fujitsu->max_brightness;
-		fujitsu->bl_device->props.max_brightness = max_brightness - 1;
 		fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
 	}
 

drivers/platform/x86/msi-laptop.c

View file

diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index c2b05da..996223a 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -683,11 +683,14 @@ static int __init msi_init(void)
 		printk(KERN_INFO "MSI: Brightness ignored, must be controlled "
 		       "by ACPI video driver\n");
 	} else {
+		struct backlight_properties props;
+		memset(&props, 0, sizeof(struct backlight_properties));
+		props.max_brightness = MSI_LCD_LEVEL_MAX - 1;
 		msibl_device = backlight_device_register("msi-laptop-bl", NULL,
-							 NULL, &msibl_ops);
+							 NULL, &msibl_ops,
+							 &props);
 		if (IS_ERR(msibl_device))
 			return PTR_ERR(msibl_device);
-		msibl_device->props.max_brightness = MSI_LCD_LEVEL_MAX-1;
 	}
 
 	ret = platform_driver_register(&msipf_driver);

drivers/platform/x86/msi-wmi.c

View file

diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c
index f5f70d4..367caaa 100644
--- a/drivers/platform/x86/msi-wmi.c
+++ b/drivers/platform/x86/msi-wmi.c
@@ -138,7 +138,7 @@ static int bl_set_status(struct backlight_device *bd)
 	return msi_wmi_set_block(0, backlight_map[bright]);
 }
 
-static struct backlight_ops msi_backlight_ops = {
+static const struct backlight_ops msi_backlight_ops = {
 	.get_brightness	= bl_get,
 	.update_status	= bl_set_status,
 };
@@ -249,12 +249,17 @@ static int __init msi_wmi_init(void)
 		goto err_uninstall_notifier;
 
 	if (!acpi_video_backlight_support()) {
-		backlight = backlight_device_register(DRV_NAME,
-				NULL, NULL, &msi_backlight_ops);
-		if (IS_ERR(backlight))
+		struct backlight_properties props;
+		memset(&props, 0, sizeof(struct backlight_properties));
+		props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
+		backlight = backlight_device_register(DRV_NAME, NULL, NULL,
+						      &msi_backlight_ops,
+						      &props);
+		if (IS_ERR(backlight)) {
+			err = PTR_ERR(backlight);
 			goto err_free_input;
+		}
 
-		backlight->props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
 		err = bl_get(NULL);
 		if (err < 0)
 			goto err_free_backlight;

drivers/platform/x86/panasonic-laptop.c

View file

diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c
index c9fc479..726f02a 100644
--- a/drivers/platform/x86/panasonic-laptop.c
+++ b/drivers/platform/x86/panasonic-laptop.c
@@ -352,7 +352,7 @@ static int bl_set_status(struct backlight_device *bd)
 	return acpi_pcc_write_sset(pcc, SINF_DC_CUR_BRIGHT, bright);
 }
 
-static struct backlight_ops pcc_backlight_ops = {
+static const struct backlight_ops pcc_backlight_ops = {
 	.get_brightness	= bl_get,
 	.update_status	= bl_set_status,
 };
@@ -600,6 +600,7 @@ static int acpi_pcc_hotkey_resume(struct acpi_device *device)
 
 static int acpi_pcc_hotkey_add(struct acpi_device *device)
 {
+	struct backlight_properties props;
 	struct pcc_acpi *pcc;
 	int num_sifr, result;
 
@@ -637,24 +638,25 @@ static int acpi_pcc_hotkey_add(struct acpi_device *device)
 	if (result) {
 		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
 				  "Error installing keyinput handler\n"));
-		goto out_sinf;
+		goto out_hotkey;
 	}
 
-	/* initialize backlight */
-	pcc->backlight = backlight_device_register("panasonic", NULL, pcc,
-						   &pcc_backlight_ops);
-	if (IS_ERR(pcc->backlight))
-		goto out_input;
-
 	if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) {
 		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
 				 "Couldn't retrieve BIOS data\n"));
-		goto out_backlight;
+		goto out_input;
+	}
+	/* initialize backlight */
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = pcc->sinf[SINF_AC_MAX_BRIGHT];
+	pcc->backlight = backlight_device_register("panasonic", NULL, pcc,
+						   &pcc_backlight_ops, &props);
+	if (IS_ERR(pcc->backlight)) {
+		result = PTR_ERR(pcc->backlight);
+		goto out_sinf;
 	}
 
 	/* read the initial brightness setting from the hardware */
-	pcc->backlight->props.max_brightness =
-					pcc->sinf[SINF_AC_MAX_BRIGHT];
 	pcc->backlight->props.brightness = pcc->sinf[SINF_AC_CUR_BRIGHT];
 
 	/* read the initial sticky key mode from the hardware */
@@ -669,12 +671,12 @@ static int acpi_pcc_hotkey_add(struct acpi_device *device)
 
 out_backlight:
 	backlight_device_unregister(pcc->backlight);
+out_sinf:
+	kfree(pcc->sinf);
 out_input:
 	input_unregister_device(pcc->input_dev);
 	/* no need to input_free_device() since core input API refcount and
 	 * free()s the device */
-out_sinf:
-	kfree(pcc->sinf);
 out_hotkey:
 	kfree(pcc);
 

drivers/platform/x86/sony-laptop.c

View file

diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 5a3d851..6553b91 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -1291,9 +1291,13 @@ static int sony_nc_add(struct acpi_device *device)
 		       "controlled by ACPI video driver\n");
 	} else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
 						&handle))) {
+							struct backlight_properties props;
+		memset(&props, 0, sizeof(struct backlight_properties));
+		props.max_brightness = SONY_MAX_BRIGHTNESS - 1;
 		sony_backlight_device = backlight_device_register("sony", NULL,
 								  NULL,
-								  &sony_backlight_ops);
+								  &sony_backlight_ops,
+								  &props);
 
 		if (IS_ERR(sony_backlight_device)) {
 			printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
@@ -1302,8 +1306,6 @@ static int sony_nc_add(struct acpi_device *device)
 			sony_backlight_device->props.brightness =
 			    sony_backlight_get_brightness
 			    (sony_backlight_device);
-			sony_backlight_device->props.max_brightness =
-			    SONY_MAX_BRIGHTNESS - 1;
 		}
 
 	}

drivers/platform/x86/thinkpad_acpi.c

View file

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index c64e352..770b853 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -6170,6 +6170,7 @@ static const struct tpacpi_quirk brightness_quirk_table[] __initconst = {
 
 static int __init brightness_init(struct ibm_init_struct *iibm)
 {
+	struct backlight_properties props;
 	int b;
 	unsigned long quirks;
 
@@ -6259,9 +6260,12 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
 		printk(TPACPI_INFO
 		       "detected a 16-level brightness capable ThinkPad\n");
 
-	ibm_backlight_device = backlight_device_register(
-					TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL,
-					&ibm_backlight_data);
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = (tp_features.bright_16levels) ? 15 : 7;
+	ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME,
+							 NULL, NULL,
+							 &ibm_backlight_data,
+							 &props);
 	if (IS_ERR(ibm_backlight_device)) {
 		int rc = PTR_ERR(ibm_backlight_device);
 		ibm_backlight_device = NULL;
@@ -6280,8 +6284,6 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
 			"or not on your ThinkPad\n", TPACPI_MAIL);
 	}
 
-	ibm_backlight_device->props.max_brightness =
-				(tp_features.bright_16levels)? 15 : 7;
 	ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK;
 	backlight_update_status(ibm_backlight_device);
 

drivers/platform/x86/toshiba_acpi.c

View file

diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 789240d..def4841 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -924,6 +924,7 @@ static int __init toshiba_acpi_init(void)
 	u32 hci_result;
 	bool bt_present;
 	int ret = 0;
+	struct backlight_properties props;
 
 	if (acpi_disabled)
 		return -ENODEV;
@@ -974,10 +975,12 @@ static int __init toshiba_acpi_init(void)
 		}
 	}
 
+	props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
 	toshiba_backlight_device = backlight_device_register("toshiba",
-						&toshiba_acpi.p_dev->dev,
-						NULL,
-						&toshiba_backlight_data);
+							     &toshiba_acpi.p_dev->dev,
+							     NULL,
+							     &toshiba_backlight_data,
+							     &props);
         if (IS_ERR(toshiba_backlight_device)) {
 		ret = PTR_ERR(toshiba_backlight_device);
 
@@ -986,7 +989,6 @@ static int __init toshiba_acpi_init(void)
 		toshiba_acpi_exit();
 		return ret;
 	}
-        toshiba_backlight_device->props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
 
 	/* Register rfkill switch for Bluetooth */
 	if (hci_get_bt_present(&bt_present) == HCI_SUCCESS && bt_present) {

drivers/staging/samsung-laptop/samsung-laptop.c

View file

diff --git a/drivers/staging/samsung-laptop/samsung-laptop.c b/drivers/staging/samsung-laptop/samsung-laptop.c
index dd7ea4c..eb44b60 100644
--- a/drivers/staging/samsung-laptop/samsung-laptop.c
+++ b/drivers/staging/samsung-laptop/samsung-laptop.c
@@ -394,6 +394,7 @@ MODULE_DEVICE_TABLE(dmi, samsung_dmi_table);
 
 static int __init samsung_init(void)
 {
+	struct backlight_properties props;
 	struct sabi_retval sretval;
 	const char *testStr = "SECLINUX";
 	void __iomem *memcheck;
@@ -486,12 +487,14 @@ static int __init samsung_init(void)
 		goto error_no_platform;
 
 	/* create a backlight device to talk to this one */
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = MAX_BRIGHT;
 	backlight_device = backlight_device_register("samsung", &sdev->dev,
-						     NULL, &backlight_ops);
+						     NULL, &backlight_ops,
+						     &props);
 	if (IS_ERR(backlight_device))
 		goto error_no_backlight;
 
-	backlight_device->props.max_brightness = MAX_BRIGHT;