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| author | Trent Piepho <xyzzy@speakeasy.org> | 2009-03-29 05:25:35 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-30 19:43:44 +0400 |
| commit | 5a27578667b3bd00cab909296824498bdbd732d5 (patch) | |
| tree | 684da677b29e234bcd3a3a020bb6428fdd13ba46 | |
| parent | 601bc2984508e8b70a604167229f4f687eae63bb (diff) | |
| download | linux-5a27578667b3bd00cab909296824498bdbd732d5.tar.xz | |
V4L/DVB (11263): gspca: Stop setting buffer type, and avoid memset in querycap
The v4l2-ioctl core checks the buffer type now by only allowing buffer
types for which the corresponding ->vidioc_try_fmt_xxx() methods are
defined.
This driver only defines ->vidioc_try_fmt_vid_cap() so only VIDEO_CAPTURE
buffers are allowed to be used with vidioc_g_parm. Also,
->vidioc_enum_fmt_vid_cap() is only called for VIDEO_CAPTURE buffers.
There is no need to set the buffer type since it must already be the
correct value.
The struct which ->vidioc_querycap() is supposed to fill in is already
zeroed so it's not necessary to call memset on it.
Cc: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/gspca/gspca.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index 66e91d896eda..a75c1ca2db41 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -765,7 +765,6 @@ static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, fmtdesc->pixelformat = fmt_tb[index]; if (gspca_is_compressed(fmt_tb[index])) fmtdesc->flags = V4L2_FMT_FLAG_COMPRESSED; - fmtdesc->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; fmtdesc->description[0] = fmtdesc->pixelformat & 0xff; fmtdesc->description[1] = (fmtdesc->pixelformat >> 8) & 0xff; fmtdesc->description[2] = (fmtdesc->pixelformat >> 16) & 0xff; @@ -962,8 +961,6 @@ static int vidioc_querycap(struct file *file, void *priv, struct gspca_dev *gspca_dev = priv; int ret; - memset(cap, 0, sizeof *cap); - /* protect the access to the usb device */ if (mutex_lock_interruptible(&gspca_dev->usb_lock)) return -ERESTARTSYS; @@ -1341,7 +1338,6 @@ static int vidioc_g_parm(struct file *filp, void *priv, { struct gspca_dev *gspca_dev = priv; - parm->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; parm->parm.capture.readbuffers = gspca_dev->nbufread; if (gspca_dev->sd_desc->get_streamparm) { |