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authorTrent Piepho <xyzzy@speakeasy.org>2009-03-03 20:21:03 -0800
committerTrent Piepho <xyzzy@speakeasy.org>2009-03-03 20:21:03 -0800
commit30469c2aeab5614b28a4de2d080481dc84f130da (patch)
tree6f090e614afcc3bcb3f80874dffe1ce2c724387d /linux
parent28109ada8c6cdc6b8fb51da8cbbb7506b9da0400 (diff)
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gspca: Don't need to zero ioctl parameter fields
From: Trent Piepho <xyzzy@speakeasy.org> 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, enum_input, g_parm and gmbuf. Priority: normal Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Diffstat (limited to 'linux')
-rw-r--r--linux/drivers/media/video/gspca/gspca.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/linux/drivers/media/video/gspca/gspca.c b/linux/drivers/media/video/gspca/gspca.c
index 8d78b9287..d629ce1dc 100644
--- a/linux/drivers/media/video/gspca/gspca.c
+++ b/linux/drivers/media/video/gspca/gspca.c
@@ -1111,7 +1111,6 @@ static int vidioc_s_audio(struct file *file, void *priv,
static int vidioc_g_audio(struct file *file, void *priv,
struct v4l2_audio *audio)
{
- memset(audio, 0, sizeof *audio);
strcpy(audio->name, "Microphone");
return 0;
}
@@ -1145,7 +1144,6 @@ static int vidioc_enum_input(struct file *file, void *priv,
if (input->index != 0)
return -EINVAL;
- memset(input, 0, sizeof *input);
input->type = V4L2_INPUT_TYPE_CAMERA;
strncpy(input->name, gspca_dev->sd_desc->name,
sizeof input->name);
@@ -1353,7 +1351,6 @@ static int vidioc_g_parm(struct file *filp, void *priv,
{
struct gspca_dev *gspca_dev = priv;
- memset(parm, 0, sizeof *parm);
parm->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
parm->parm.capture.readbuffers = gspca_dev->nbufread;
@@ -1423,7 +1420,6 @@ static int vidiocgmbuf(struct file *file, void *priv,
{
struct v4l2_format fmt;
- memset(&fmt, 0, sizeof fmt);
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
i = gspca_dev->cam.nmodes - 1; /* highest mode */
fmt.fmt.pix.width = gspca_dev->cam.cam_mode[i].width;