diff mbox

video:uvesafb: Fix dereference NULL pointer code path

Message ID 20130127061331.GA4314@udknight (mailing list archive)
State New, archived
Headers show

Commit Message

wang yanqing Jan. 27, 2013, 6:13 a.m. UTC 
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 mbox

Patch

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;