[PATCH] Fix error handling in backlight drivers

From: Jean Delvare
Date: Sun Mar 05 2006 - 13:06:05 EST


Hi Jamey, Andrew,

I have spotted the following problem in the way the backlight and lcd
drivers handle out-of-memory errors. This should probably be fixed for
2.6.16. Note that I don't have supported hardware so I couldn't
actually test the fix.

* * * * *

ERR_PTR() is supposed to be passed a negative value.

Signed-off-by: Jean Delvare <khali@xxxxxxxxxxxx>
---
drivers/video/backlight/backlight.c | 2 +-
drivers/video/backlight/lcd.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

--- linux-2.6.16-rc5.orig/drivers/video/backlight/backlight.c 2006-02-13 19:22:18.000000000 +0100
+++ linux-2.6.16-rc5/drivers/video/backlight/backlight.c 2006-03-05 18:39:58.000000000 +0100
@@ -172,7 +172,7 @@

new_bd = kmalloc(sizeof(struct backlight_device), GFP_KERNEL);
if (unlikely(!new_bd))
- return ERR_PTR(ENOMEM);
+ return ERR_PTR(-ENOMEM);

init_MUTEX(&new_bd->sem);
new_bd->props = bp;
--- linux-2.6.16-rc5.orig/drivers/video/backlight/lcd.c 2006-02-13 19:22:18.000000000 +0100
+++ linux-2.6.16-rc5/drivers/video/backlight/lcd.c 2006-03-05 18:39:54.000000000 +0100
@@ -171,7 +171,7 @@

new_ld = kmalloc(sizeof(struct lcd_device), GFP_KERNEL);
if (unlikely(!new_ld))
- return ERR_PTR(ENOMEM);
+ return ERR_PTR(-ENOMEM);

init_MUTEX(&new_ld->sem);
new_ld->props = lp;


--
Jean Delvare
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/