[media] am437x-vpfe: fix an uninitialized variable bug
If we are doing V4L2_FIELD_NONE then "ret" is used uninitialized. Fixes: 417d2e50 ('[media] media: platform: add VPFE capture driver support for AM437X') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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