[PATCH]video:uvesafb: Fix dereference NULL pointer code path
From: Wang YanQing <udknight@gmail.com>
Date: 2013-01-27 06:13:51
Also in:
lkml
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
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> --- drivers/video/uvesafb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index 2f8f82d..230bd45 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c@@ -1975,7 +1975,8 @@ static int __devinit 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;
--
1.7.11.1.116.g8228a23