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[media] v4l2-ioctl: simplify code 

Instead of a big if at the beginning, just check if g_selection == NULL
and call the cropcap op immediately and return the result.

No functional changes in this patch.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Hans Verkuil 2016-02-29 07:16:39 -03:00 committed by Mauro Carvalho Chehab
parent 9765a32cd8
commit 54ace1cfd4
1 changed files with 32 additions and 25 deletions
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57
drivers/media/v4l2-core/v4l2-ioctl.c
View File

@ -2160,34 +2160,41 @@ static int v4l_cropcap(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_cropcap *p = arg;
struct v4l2_selection s = { .type = p->type };
int ret;
if (ops->vidioc_g_selection) {
struct v4l2_selection s = { .type = p->type };
int ret;
/* obtaining bounds */
if (V4L2_TYPE_IS_OUTPUT(p->type))
s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS;
else
s.target = V4L2_SEL_TGT_CROP_BOUNDS;
ret = ops->vidioc_g_selection(file, fh, &s);
if (ret)
return ret;
p->bounds = s.r;
/* obtaining defrect */
if (V4L2_TYPE_IS_OUTPUT(p->type))
s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT;
else
s.target = V4L2_SEL_TGT_CROP_DEFAULT;
ret = ops->vidioc_g_selection(file, fh, &s);
if (ret)
return ret;
p->defrect = s.r;
if (ops->vidioc_g_selection == NULL) {
/*
* The determine_valid_ioctls() call already should ensure
* that ops->vidioc_cropcap != NULL, but just in case...
*/
if (ops->vidioc_cropcap)
return ops->vidioc_cropcap(file, fh, p);
return -ENOTTY;
}
/* obtaining bounds */
if (V4L2_TYPE_IS_OUTPUT(p->type))
s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS;
else
s.target = V4L2_SEL_TGT_CROP_BOUNDS;
ret = ops->vidioc_g_selection(file, fh, &s);
if (ret)
return ret;
p->bounds = s.r;
/* obtaining defrect */
if (V4L2_TYPE_IS_OUTPUT(p->type))
s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT;
else
s.target = V4L2_SEL_TGT_CROP_DEFAULT;
ret = ops->vidioc_g_selection(file, fh, &s);
if (ret)
return ret;
p->defrect = s.r;
/* setting trivial pixelaspect */
p->pixelaspect.numerator = 1;
p->pixelaspect.denominator = 1;