video:uvesafb: Fix dereference NULL pointer code path

platform_device_alloc could failed and return NULL, we should check this before call platform_device_put.

Wang YanQing committed 13 years ago

Commit 090da751 parent 477fc031 file · +2 −1Browse files

Unified · Split

@@ -1973,7 +1973,8 @@ static int uvesafb_init(void) · 1972 unmodified lines
1973	err = -ENOMEM;	1973	err = -ENOMEM;
1974		1974
1975	if (err) {	1975	if (err) {
1976	platform_device_put(uvesafb_device);	1976	if (uvesafb_device)
		1977	platform_device_put(uvesafb_device);
1977	platform_driver_unregister(&uvesafb_driver);	1978	platform_driver_unregister(&uvesafb_driver);
1978	cn_del_callback(&uvesafb_cn_id);	1979	cn_del_callback(&uvesafb_cn_id);
1979	return err;	1980	return err;