[PATCH 4/7] media-entity: set ent_enum->bmap to NULL after freeing it

[Hans Verkuil]

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-ci...@xs4all.nl>
---
 drivers/media/media-entity.c | 1 +
 1 file changed, 1 insertion(+)

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);
 
-- 
2.20.1