media: v4l2-dev.c: Modified the macro SET_VALID_IOCTL
Macros starting with if should be enclosed by a do - while loop to avoid possible if/else logic defects. So modified the macro SET_VALID_IOCTL with do - while loop. [hverkuil: checkpatch: add parenthesis around 'ops'] Signed-off-by: lijian <lijian@yulong.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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@ -519,8 +519,7 @@ static int get_index(struct video_device *vdev)
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}
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#define SET_VALID_IOCTL(ops, cmd, op) \
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if (ops->op) \
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set_bit(_IOC_NR(cmd), valid_ioctls)
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do { if ((ops)->op) set_bit(_IOC_NR(cmd), valid_ioctls); } while (0)
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/* This determines which ioctls are actually implemented in the driver.
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It's a one-time thing which simplifies video_ioctl2 as it can just do
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