diff mbox series

[PATCHv3,4/9] media-entity: set ent_enum->bmap to NULL after freeing it

Message ID 20190307093001.30435-5-hverkuil-cisco@xs4all.nl (mailing list archive)
State New, archived
Headers show
Series Various core and virtual driver fixes | expand

Commit Message

Hans Verkuil March 7, 2019, 9:29 a.m. UTC 
From: Hans Verkuil <hverkuil-cisco@xs4all.nl>

Ensure that this pointer is set to NULL after it is freed.
The vimc driver has a static media_entity and after
unbinding and rebinding the vimc device the media code will
try to free this pointer again since it wasn't set to NULL.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
---
 drivers/media/media-entity.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c
index 0b1cb3559140..7b2a2cc95530 100644
--- a/drivers/media/media-entity.c
+++ b/drivers/media/media-entity.c
@@ -88,6 +88,7 @@  EXPORT_SYMBOL_GPL(__media_entity_enum_init);
 void media_entity_enum_cleanup(struct media_entity_enum *ent_enum)
 {
 	kfree(ent_enum->bmap);
+	ent_enum->bmap = NULL;
 }
 EXPORT_SYMBOL_GPL(media_entity_enum_cleanup);