media: v4l2-compat-ioctl32.c: don't copy back the result for certain errors

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commit d83a8243aa upstream.

Some ioctls need to copy back the result even if the ioctl returned
an error. However, don't do this for the error code -ENOTTY.
It makes no sense in that cases.

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>

...

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Hans Verkuil 2018-02-14 12:44:32 +01:00 • committed by Greg Kroah-Hartman

parent efabe94f8a

commit b3f69836c9

1 changed files with 3 additions and 0 deletions

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drivers/media/v4l2-core/v4l2-compat-ioctl32.c

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