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authorTrent Piepho <xyzzy@speakeasy.org>2009-03-04 01:21:03 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 12:43:06 -0300
commit38367255185408748c2d46641e06c83570af161c (patch)
tree4c76afbd0d216baad346d5da76f10e946a98a8d4 /drivers/media/video
parentdf7bdfcd0efa9a25a7c9751a25b4d4efd9141b8d (diff)
V4L/DVB (10818): usbvision: Don't need to zero ioctl parameter fields
The v4l2 core code in v4l2_ioctl will zero out the structure the driver is supposed to fill in for read-only ioctls. For read/write ioctls, all the fields which aren't supplied from userspace will be zeroed out. Zeroing code is removed from g_audio, queryctrl, and enum_fmt_vid_cap. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video')
-rw-r--r--drivers/media/video/usbvision/usbvision-video.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c
index 863fcb31622f..3d400e4b7a27 100644
--- a/drivers/media/video/usbvision/usbvision-video.c
+++ b/drivers/media/video/usbvision/usbvision-video.c
@@ -697,7 +697,6 @@ static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a)
{
struct usb_usbvision *usbvision = video_drvdata(file);
- memset(a,0,sizeof(*a));
if(usbvision->radio) {
strcpy(a->name,"Radio");
} else {
@@ -721,10 +720,6 @@ static int vidioc_queryctrl (struct file *file, void *priv,
struct v4l2_queryctrl *ctrl)
{
struct usb_usbvision *usbvision = video_drvdata(file);
- int id=ctrl->id;
-
- memset(ctrl,0,sizeof(*ctrl));
- ctrl->id=id;
call_all(usbvision, core, queryctrl, ctrl);
@@ -926,11 +921,9 @@ static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv,
if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
return -EINVAL;
}
- vfd->flags = 0;
vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
- memset(vfd->reserved, 0, sizeof(vfd->reserved));
return 0;
}

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