MEDIA_IOC_SETUP_LINK didn't zero the reserved field of the media_link_desc
struct. Do so in media_device_setup_link().

Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
---
 drivers/media/media-device.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c
index e79f72b8b858..afbf23a19e16 100644
--- a/drivers/media/media-device.c
+++ b/drivers/media/media-device.c
@@ -218,6 +218,8 @@ static long media_device_setup_link(struct media_device 
*mdev,
        if (link == NULL)
                return -EINVAL;
 
+       memset(linkd->reserved, 0, sizeof(linkd->reserved));
+
        /* Setup the link on both entities. */
        return __media_entity_setup_link(link, linkd->flags);
 }
-- 
2.15.1

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