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From: Dmitry Torokhov <dtor@insightbb.com>
To: Richard Purdie <rpurdie@rpsys.net>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: [patch 2/6] Fix error handling when registering new device
Date: Fri, 11 Aug 2006 01:03:12 -0400	[thread overview]
Message-ID: <20060811050611.142510849.dtor@insightbb.com> (raw)
In-Reply-To: <20060811050310.958962036.dtor@insightbb.com>

[-- Attachment #1: backlight-fix-error-handling.patch --]
[-- Type: text/plain, Size: 1690 bytes --]

Backlight: fix error handling when registering new device

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---

 drivers/video/backlight/backlight.c |    8 +++++---
 drivers/video/backlight/lcd.c       |    8 +++++---
 2 files changed, 10 insertions(+), 6 deletions(-)

Index: work/drivers/video/backlight/backlight.c
===================================================================
--- work.orig/drivers/video/backlight/backlight.c
+++ work/drivers/video/backlight/backlight.c
@@ -205,7 +205,7 @@ struct backlight_device *backlight_devic
 
 	rc = class_device_register(&new_bd->class_dev);
 	if (unlikely(rc)) {
-error:		kfree(new_bd);
+		kfree(new_bd);
 		return ERR_PTR(rc);
 	}
 
@@ -213,8 +213,10 @@ error:		kfree(new_bd);
 	new_bd->fb_notif.notifier_call = fb_notifier_callback;
 
 	rc = fb_register_client(&new_bd->fb_notif);
-	if (unlikely(rc))
-		goto error;
+	if (unlikely(rc)) {
+		class_device_unregister(&new_bd->class_dev);
+		return ERR_PTR(rc);
+	}
 
 	return new_bd;
 }
Index: work/drivers/video/backlight/lcd.c
===================================================================
--- work.orig/drivers/video/backlight/lcd.c
+++ work/drivers/video/backlight/lcd.c
@@ -177,7 +177,7 @@ struct lcd_device *lcd_device_register(c
 
 	rc = class_device_register(&new_ld->class_dev);
 	if (unlikely(rc)) {
-error:		kfree(new_ld);
+		kfree(new_ld);
 		return ERR_PTR(rc);
 	}
 
@@ -185,8 +185,10 @@ error:		kfree(new_ld);
 	new_ld->fb_notif.notifier_call = fb_notifier_callback;
 
 	rc = fb_register_client(&new_ld->fb_notif);
-	if (unlikely(rc))
-		goto error;
+	if (unlikely(rc)) {
+		class_device_unregister(&new_ld->class_dev);
+		return ERR_PTR(rc);
+	}
 
 	return new_ld;
 }

  parent reply	other threads:[~2006-08-11  5:09 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-11  5:03 [patch 0/6] Backlight & lcd fixes/cleanups Dmitry Torokhov
2006-08-11  5:03 ` [patch 1/6] Convert to use default class device attributes Dmitry Torokhov
2006-08-11  5:03 ` Dmitry Torokhov [this message]
2006-08-11  5:03 ` [patch 3/6] Get rid of excessive amount of likely()s Dmitry Torokhov
2006-08-11  5:03 ` [patch 4/6] Remove "owner" from backlight_properties structure Dmitry Torokhov
2006-08-11  5:03 ` [patch 5/6] Convert to use mutexes instead of semaphores Dmitry Torokhov
2006-08-11 12:58   ` Dmitry Torokhov
2006-08-11 13:16     ` Richard Purdie
2006-08-11 13:34       ` Dmitry Torokhov
2006-08-11 13:42         ` Michael Hanselmann
2006-08-11 14:07           ` Dmitry Torokhov
2006-08-11 16:45             ` Richard Purdie
2006-08-11 17:20               ` Dmitry Torokhov
2006-08-29 20:54               ` Michael Hanselmann
2006-08-11  5:03 ` [patch 6/6] Move per-device data out of backlight_properties Dmitry Torokhov
2006-08-11  8:02   ` Richard Purdie
2006-08-11 12:27     ` Dmitry Torokhov
2006-08-11 12:55       ` Richard Purdie
2006-08-11 13:10         ` Dmitry Torokhov

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