[PATCH 1/1] v4l: fwnode: Make v4l2_fwnode_endpoint_free() safer

[Sakari Ailus]

Assign vep->link_frequencies to NULL after releasing its memory. Without
this change, multiple calls to v4l2_fwnode_endpoint_free() would result in
double kfree calls.

Signed-off-by: Sakari Ailus <sakari.ai...@linux.intel.com>
---
 drivers/media/v4l2-core/v4l2-fwnode.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c 
b/drivers/media/v4l2-core/v4l2-fwnode.c
index 3bd1888787eb..192cac076761 100644
--- a/drivers/media/v4l2-core/v4l2-fwnode.c
+++ b/drivers/media/v4l2-core/v4l2-fwnode.c
@@ -512,6 +512,7 @@ void v4l2_fwnode_endpoint_free(struct v4l2_fwnode_endpoint 
*vep)
                return;
 
        kfree(vep->link_frequencies);
+       vep->link_frequencies = NULL;
 }
 EXPORT_SYMBOL_GPL(v4l2_fwnode_endpoint_free);
 
-- 
2.20.1