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media: v4l2-ioctl.c: don't copy back the result for -ENOTTY
authorHans Verkuil <hans.verkuil@cisco.com>
Wed, 14 Feb 2018 11:44:23 +0000 (12:44 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 16 Feb 2018 19:23:00 +0000 (20:23 +0100)
commit2d280dab382eef93311f089da0bb428336431208
tree02e521a45c562bebaa6ffdb980d201203ea3c753tree | snapshot (tar.gz zip)
parentea96d8f676dd3caeb77e3dc509c880cc81d303a6commit | diff
media: v4l2-ioctl.c: don't copy back the result for -ENOTTY

commit 181a4a2d5a0a7b43cab08a70710d727e7764ccdd upstream.

If the ioctl returned -ENOTTY, then don't bother copying
back the result as there is no point.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/media/v4l2-core/v4l2-ioctl.c diff | blob | blame | history