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video:uvesafb: Fix dereference NULL pointer code path
author
Wang YanQing
<udknight@gmail.com>
Sat, 30 Mar 2013 02:53:00 +0000
(
04:53
+0200)
committer
Tomi Valkeinen
<tomi.valkeinen@ti.com>
Tue, 2 Apr 2013 10:33:55 +0000
(13:33 +0300)
platform_device_alloc could failed and return NULL,
we should check this before call platform_device_put.
Signed-off-by: Wang YanQing <udknight@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
drivers/video/uvesafb.c
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diff --git
a/drivers/video/uvesafb.c
b/drivers/video/uvesafb.c
index b75db01864883e5fea61f63cc95e3df35e749ea2..d4284458377e80103d230524d573e10e63b2ac14 100644
(file)
--- a/
drivers/video/uvesafb.c
+++ b/
drivers/video/uvesafb.c
@@
-1973,7
+1973,8
@@
static int uvesafb_init(void)
err = -ENOMEM;
if (err) {
- platform_device_put(uvesafb_device);
+ if (uvesafb_device)
+ platform_device_put(uvesafb_device);
platform_driver_unregister(&uvesafb_driver);
cn_del_callback(&uvesafb_cn_id);
return err;