diff options
author | Trent Piepho <xyzzy@speakeasy.org> | 2009-03-28 22:25:36 -0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-30 12:43:45 -0300 |
commit | 6174523c5948f8a36f778f0abdfc648a5d73bf46 (patch) | |
tree | c1674837d9c4f2e3177b7d2dc87e9038681d4645 /drivers/media/video/meye.c | |
parent | 185cda966633fc18b9df09b6d84d5ec2db4a57ff (diff) | |
download | op-kernel-dev-6174523c5948f8a36f778f0abdfc648a5d73bf46.zip op-kernel-dev-6174523c5948f8a36f778f0abdfc648a5d73bf46.tar.gz |
V4L/DVB (11270): meye: Remove buffer type checks from XXX_fmt_vid_cap, XXXbuf
The ->vidioc_(s|g|try|enum)_fmt_vid_cap() methods are only called on
VIDEO_CAPTURE buffers. Thus, there is no need to check or set the buffer's
'type' field since it must already be set to VIDEO_CAPTURE.
The v4l2-ioctl core only allows buffer types for which the corresponding
->vidioc_try_fmt_xxx() methods are defined to be used with
vidioc_(q|dq|query)bufs() and vidioc_reqbufs().
Since this driver only defines ->vidioc_try_fmt_vid_cap() the checks can be
removed from vidioc_reqbufs(), vidioc_querybuf(), vidioc_qbuf(), and
vidioc_dqbuf(). Also, the buffer index is unsigned so it's not necessary
to check if it is less than zero.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/meye.c')
-rw-r--r-- | drivers/media/video/meye.c | 29 |
1 files changed, 3 insertions, 26 deletions
diff --git a/drivers/media/video/meye.c b/drivers/media/video/meye.c index d9d73d8..2ad11f0 100644 --- a/drivers/media/video/meye.c +++ b/drivers/media/video/meye.c @@ -1256,18 +1256,13 @@ static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh, if (f->index > 1) return -EINVAL; - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (f->index == 0) { /* standard YUV 422 capture */ - f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; f->flags = 0; strcpy(f->description, "YUV422"); f->pixelformat = V4L2_PIX_FMT_YUYV; } else { /* compressed MJPEG capture */ - f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; f->flags = V4L2_FMT_FLAG_COMPRESSED; strcpy(f->description, "MJPEG"); f->pixelformat = V4L2_PIX_FMT_MJPEG; @@ -1279,9 +1274,6 @@ static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh, static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) { - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_YUYV && f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG) return -EINVAL; @@ -1312,9 +1304,6 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, static int vidioc_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) { - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - switch (meye.mchip_mode) { case MCHIP_HIC_MODE_CONT_OUT: default: @@ -1338,9 +1327,6 @@ static int vidioc_g_fmt_vid_cap(struct file *file, void *fh, static int vidioc_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) { - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_YUYV && f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG) return -EINVAL; @@ -1386,9 +1372,6 @@ static int vidioc_reqbufs(struct file *file, void *fh, { int i; - if (req->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (req->memory != V4L2_MEMORY_MMAP) return -EINVAL; @@ -1429,9 +1412,9 @@ static int vidioc_reqbufs(struct file *file, void *fh, static int vidioc_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf) { - int index = buf->index; + unsigned int index = buf->index; - if (index < 0 || index >= gbuffers) + if (index >= gbuffers) return -EINVAL; buf->bytesused = meye.grab_buffer[index].size; @@ -1455,13 +1438,10 @@ static int vidioc_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf) static int vidioc_qbuf(struct file *file, void *fh, struct v4l2_buffer *buf) { - if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (buf->memory != V4L2_MEMORY_MMAP) return -EINVAL; - if (buf->index < 0 || buf->index >= gbuffers) + if (buf->index >= gbuffers) return -EINVAL; if (meye.grab_buffer[buf->index].state != MEYE_BUF_UNUSED) @@ -1481,9 +1461,6 @@ static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf) { int reqnr; - if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (buf->memory != V4L2_MEMORY_MMAP) return -EINVAL; |