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From: "Bruno Prémont" <bonbons@linux-vserver.org>
To: Richard Purdie <rpurdie@linux.intel.com>,
	Mike Frysinger <vapier@gentoo.org>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: [PATCH] backlight, blackfin: fix missing registration failure handling
Date: Fri, 26 Feb 2010 13:04:54 +0100	[thread overview]
Message-ID: <20100226130454.228af99a@neptune.home> (raw)
In-Reply-To: 20100221002831.689bace8@neptune.home

Check newly registered backlight_device for error and properly
return error to parent
Mark struct backlight_ops as const.

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Acked-by: Mike Frysinger <vapier@gentoo.org> (constify struct backlight_ops)
---
 drivers/video/bf54x-lq043fb.c           |   10 +++++++++-
 drivers/video/bfin-t350mcqb-fb.c        |   10 +++++++++-
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c
index db4e6f7..a589216 100644
--- a/drivers/video/bf54x-lq043fb.c
+++ b/drivers/video/bf54x-lq043fb.c
@@ -463,7 +463,7 @@ static int bl_get_brightness(struct backlight_device *bd)
 	return 0;
 }
 
-static struct backlight_ops bfin_lq043fb_bl_ops = {
+static const struct backlight_ops bfin_lq043fb_bl_ops = {
 	.get_brightness = bl_get_brightness,
 };
 
@@ -678,6 +678,12 @@ static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
 	bl_dev =
 	    backlight_device_register("bf54x-bl", NULL, NULL,
 				      &bfin_lq043fb_bl_ops);
+	if (IS_ERR(bl_dev)) {
+		printk(KERN_ERR DRIVER_NAME
+		       ": unable to register backlight.\n");
+		ret = -EINVAL;
+		goto out9;
+	}
 	bl_dev->props.max_brightness = 255;
 
 	lcd_dev = lcd_device_register(DRIVER_NAME, &pdev->dev, NULL, &bfin_lcd_ops);
@@ -686,6 +692,8 @@ static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
 
 	return 0;
 
+out9:
+	unregister_framebuffer(fbinfo);
 out8:
 	free_irq(info->irq, info);
 out7:
diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c
index bc204c6..fe1492b 100644
--- a/drivers/video/bfin-t350mcqb-fb.c
+++ b/drivers/video/bfin-t350mcqb-fb.c
@@ -381,7 +381,7 @@ static int bl_get_brightness(struct backlight_device *bd)
 	return 0;
 }
 
-static struct backlight_ops bfin_lq043fb_bl_ops = {
+static const struct backlight_ops bfin_lq043fb_bl_ops = {
 	.get_brightness = bl_get_brightness,
 };
 
@@ -572,6 +572,12 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev)
 	bl_dev =
 	    backlight_device_register("bf52x-bl", NULL, NULL,
 				      &bfin_lq043fb_bl_ops);
+	if (IS_ERR(bl_dev)) {
+		printk(KERN_ERR DRIVER_NAME
+		       ": unable to register backlight.\n");
+		ret = -EINVAL;
+		goto out9;
+	}
 	bl_dev->props.max_brightness = 255;
 
 	lcd_dev = lcd_device_register(DRIVER_NAME, NULL, &bfin_lcd_ops);
@@ -580,6 +586,8 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev)
 
 	return 0;
 
+out9:
+	unregister_framebuffer(fbinfo);
 out8:
 	free_irq(info->irq, info);
 out7:
-- 
1.6.4.4


WARNING: multiple messages have this Message-ID (diff)
From: "Bruno Prémont" <bonbons@linux-vserver.org>
To: Richard Purdie <rpurdie@linux.intel.com>,
	Mike Frysinger <vapier@gentoo.org>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: [PATCH] backlight, blackfin: fix missing registration failure
Date: Fri, 26 Feb 2010 12:04:54 +0000	[thread overview]
Message-ID: <20100226130454.228af99a@neptune.home> (raw)
In-Reply-To: 20100221002831.689bace8@neptune.home

Check newly registered backlight_device for error and properly
return error to parent
Mark struct backlight_ops as const.

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Acked-by: Mike Frysinger <vapier@gentoo.org> (constify struct backlight_ops)
---
 drivers/video/bf54x-lq043fb.c           |   10 +++++++++-
 drivers/video/bfin-t350mcqb-fb.c        |   10 +++++++++-
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c
index db4e6f7..a589216 100644
--- a/drivers/video/bf54x-lq043fb.c
+++ b/drivers/video/bf54x-lq043fb.c
@@ -463,7 +463,7 @@ static int bl_get_brightness(struct backlight_device *bd)
 	return 0;
 }
 
-static struct backlight_ops bfin_lq043fb_bl_ops = {
+static const struct backlight_ops bfin_lq043fb_bl_ops = {
 	.get_brightness = bl_get_brightness,
 };
 
@@ -678,6 +678,12 @@ static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
 	bl_dev  	    backlight_device_register("bf54x-bl", NULL, NULL,
 				      &bfin_lq043fb_bl_ops);
+	if (IS_ERR(bl_dev)) {
+		printk(KERN_ERR DRIVER_NAME
+		       ": unable to register backlight.\n");
+		ret = -EINVAL;
+		goto out9;
+	}
 	bl_dev->props.max_brightness = 255;
 
 	lcd_dev = lcd_device_register(DRIVER_NAME, &pdev->dev, NULL, &bfin_lcd_ops);
@@ -686,6 +692,8 @@ static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
 
 	return 0;
 
+out9:
+	unregister_framebuffer(fbinfo);
 out8:
 	free_irq(info->irq, info);
 out7:
diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c
index bc204c6..fe1492b 100644
--- a/drivers/video/bfin-t350mcqb-fb.c
+++ b/drivers/video/bfin-t350mcqb-fb.c
@@ -381,7 +381,7 @@ static int bl_get_brightness(struct backlight_device *bd)
 	return 0;
 }
 
-static struct backlight_ops bfin_lq043fb_bl_ops = {
+static const struct backlight_ops bfin_lq043fb_bl_ops = {
 	.get_brightness = bl_get_brightness,
 };
 
@@ -572,6 +572,12 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev)
 	bl_dev  	    backlight_device_register("bf52x-bl", NULL, NULL,
 				      &bfin_lq043fb_bl_ops);
+	if (IS_ERR(bl_dev)) {
+		printk(KERN_ERR DRIVER_NAME
+		       ": unable to register backlight.\n");
+		ret = -EINVAL;
+		goto out9;
+	}
 	bl_dev->props.max_brightness = 255;
 
 	lcd_dev = lcd_device_register(DRIVER_NAME, NULL, &bfin_lcd_ops);
@@ -580,6 +586,8 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev)
 
 	return 0;
 
+out9:
+	unregister_framebuffer(fbinfo);
 out8:
 	free_irq(info->irq, info);
 out7:
-- 
1.6.4.4


  parent reply	other threads:[~2010-02-26 12:21 UTC|newest]

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-20 23:10 [Patch 0/3] backlight Bruno Prémont
2010-02-20 23:10 ` Bruno Prémont
2010-02-20 23:18 ` [PATCH 2/3] backlight: mark struct backlight_ops const Bruno Prémont
2010-02-20 23:18   ` Bruno Prémont
2010-02-20 23:18   ` Bruno Prémont
2010-02-20 23:18   ` Bruno Prémont
     [not found]   ` <20100221001851.673db863-hY15tx4IgV39zxVx7UNMDg@public.gmane.org>
2010-02-22 19:35     ` Mike Frysinger
2010-02-22 19:35       ` Mike Frysinger
2010-02-22 19:35       ` Mike Frysinger
2010-02-22 19:35       ` Mike Frysinger
2010-02-26 11:56   ` [PATCH] " Bruno Prémont
2010-02-26 11:56     ` Bruno Prémont
2010-02-20 23:20 ` [PATCH 1/3] backlight: Add backlight_device parameter to check_fb Bruno Prémont
2010-02-20 23:20   ` Bruno Prémont
2010-02-24 16:00   ` [PATCH 1/3] picolcd: driver for PicoLCD HID device Bruno Prémont
2010-02-24 16:00     ` Bruno Prémont
2010-02-24 16:00     ` Bruno Prémont
2010-02-24 16:01     ` [PATCH 2/3] hid: add suspend/resume hooks for hid drivers Bruno Prémont
2010-02-25  4:19       ` Oliver Neukum
2010-02-25 10:12         ` Bruno Prémont
2010-02-24 16:01     ` [PATCH 3/3] hid-picolcd: make use of new suspend/resume hooks Bruno Prémont
2010-02-24 16:01       ` Bruno Prémont
2010-02-24 18:27     ` [PATCH 1/3] picolcd: driver for PicoLCD HID device Oliver Neukum
2010-02-24 18:27       ` Oliver Neukum
2010-02-24 18:27       ` Oliver Neukum
2010-02-24 21:44       ` Rick L. Vinyard, Jr.
2010-02-24 21:44         ` Rick L. Vinyard, Jr.
2010-02-24 21:44         ` Rick L. Vinyard, Jr.
2010-02-25  4:11         ` Oliver Neukum
2010-02-25  4:11           ` Oliver Neukum
2010-02-25 11:00         ` Jiri Kosina
2010-02-25 11:00           ` Jiri Kosina
2010-02-25 15:34           ` Rick L. Vinyard, Jr.
2010-02-25 15:34             ` Rick L. Vinyard, Jr.
2010-02-26  8:12             ` Dmitry Torokhov
2010-02-26  8:12               ` Dmitry Torokhov
2010-02-25 11:07     ` Jiri Kosina
2010-02-25 11:07       ` Jiri Kosina
2010-02-25 11:07       ` Jiri Kosina
2010-02-25 11:32       ` Bruno Prémont
2010-02-25 11:32         ` Bruno Prémont
2010-02-25 11:32         ` Bruno Prémont
2010-02-25 15:18         ` Jiri Kosina
2010-02-25 15:18           ` Jiri Kosina
2010-02-25 15:18           ` Jiri Kosina
2010-02-25 15:29           ` Bruno Prémont
2010-02-25 15:29             ` Bruno Prémont
2010-03-13 19:39           ` Bruno Prémont
2010-03-13 19:39             ` Bruno Prémont
2010-03-13 21:35             ` Alan Stern
2010-03-13 21:35               ` Alan Stern
2010-03-13 22:13               ` [PATCH] hid: Register debugfs entries before adding device Bruno Prémont
2010-03-13 22:13                 ` Bruno Prémont
2010-03-15 13:48                 ` Jiri Kosina
2010-02-25 17:52         ` [PATCH 1/3] picolcd: driver for PicoLCD HID device Rick L. Vinyard, Jr.
2010-02-25 17:52           ` Rick L. Vinyard, Jr.
2010-02-25 17:52           ` Rick L. Vinyard, Jr.
2010-02-26  8:15       ` Dmitry Torokhov
2010-02-26  8:15         ` Dmitry Torokhov
2010-02-26  8:15         ` Dmitry Torokhov
2010-03-03  6:04     ` Pavel Machek
2010-03-03  6:04       ` Pavel Machek
2010-02-26 11:53   ` [PATCH] backlight: Add backlight_device parameter to check_fb Bruno Prémont
2010-02-26 11:53     ` Bruno Prémont
2010-02-20 23:28 ` [PATCH 3/3] backlight: fix missing/incomplete registration failure handling Bruno Prémont
2010-02-20 23:28   ` [PATCH 3/3] backlight: fix missing/incomplete registration failure Bruno Prémont
2010-02-21  8:04   ` [PATCH 3/3] backlight: fix missing/incomplete registration failure handling Harald Welte
2010-02-21 13:35   ` Thadeu Lima de Souza Cascardo
2010-02-21 13:35     ` [PATCH 3/3] backlight: fix missing/incomplete registration Thadeu Lima de Souza Cascardo
2010-02-24 15:33     ` [PATCH 3/3] backlight: fix missing/incomplete registration failure handling Anisse Astier
2010-02-24 15:33       ` [PATCH 3/3] backlight: fix missing/incomplete registration Anisse Astier
2010-02-26 11:59   ` [PATCH] backlight, classmate-laptop: fix missing registration failure handling Bruno Prémont
2010-02-26 16:20     ` Thadeu Lima de Souza Cascardo
2010-02-26 16:32       ` Matthew Garrett
2010-02-26 16:45         ` Richard Purdie
2010-02-26 22:25           ` Bruno Prémont
2010-02-26 12:02   ` [PATCH] backlight, appledisplay: fix incomplete " Bruno Prémont
2010-02-26 12:04   ` Bruno Prémont [this message]
2010-02-26 12:04     ` [PATCH] backlight, blackfin: fix missing registration failure Bruno Prémont
2010-02-26 12:17   ` [PATCH] backlight, msi-laptop, msi-wmi: fix incomplete registration failure handling Bruno Prémont
2010-02-26 12:20   ` [PATCH] backlight, panasonic-laptop: " Bruno Prémont

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