From 38367255185408748c2d46641e06c83570af161c Mon Sep 17 00:00:00 2001 From: Trent Piepho Date: Wed, 4 Mar 2009 01:21:03 -0300 Subject: [PATCH] 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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/usbvision/usbvision-video.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c index 863fcb31..3d400e4 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; } -- 1.8.2.3