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[media] v4l: fix handling of v4l2_input.capabilities
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The v4l core sets the v4l2_input.capabilities field based on the supplied
v4l2_ioctl_ops. However, several drivers do a memset or memcpy of the v4l2_input
struct, thus overwriting that field incorrectly.

Either remove the memset (which is already done by the v4l core), or add the
proper capabilities field in case of a memcpy.

The same is also true for v4l2_output, but that only affected the ivtv driver.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Hans Verkuil authored and Mauro Carvalho Chehab committed Dec 30, 2010
1 parent 3ea2b67 commit 657f227
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Showing 15 changed files with 32 additions and 41 deletions.
4 changes: 4 additions & 0 deletions drivers/media/dvb/ttpci/av7110_v4l.c
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Original file line number Diff line number Diff line change
Expand Up @@ -100,6 +100,7 @@ static struct v4l2_input inputs[4] = {
.tuner = 0, /* ignored */
.std = V4L2_STD_PAL_BG|V4L2_STD_NTSC_M,
.status = 0,
.capabilities = V4L2_IN_CAP_STD,
}, {
.index = 1,
.name = "Television",
Expand All @@ -108,6 +109,7 @@ static struct v4l2_input inputs[4] = {
.tuner = 0,
.std = V4L2_STD_PAL_BG|V4L2_STD_NTSC_M,
.status = 0,
.capabilities = V4L2_IN_CAP_STD,
}, {
.index = 2,
.name = "Video",
Expand All @@ -116,6 +118,7 @@ static struct v4l2_input inputs[4] = {
.tuner = 0,
.std = V4L2_STD_PAL_BG|V4L2_STD_NTSC_M,
.status = 0,
.capabilities = V4L2_IN_CAP_STD,
}, {
.index = 3,
.name = "Y/C",
Expand All @@ -124,6 +127,7 @@ static struct v4l2_input inputs[4] = {
.tuner = 0,
.std = V4L2_STD_PAL_BG|V4L2_STD_NTSC_M,
.status = 0,
.capabilities = V4L2_IN_CAP_STD,
}
};

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6 changes: 4 additions & 2 deletions drivers/media/dvb/ttpci/budget-av.c
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Expand Up @@ -1406,8 +1406,10 @@ static int budget_av_detach(struct saa7146_dev *dev)

#define KNC1_INPUTS 2
static struct v4l2_input knc1_inputs[KNC1_INPUTS] = {
{0, "Composite", V4L2_INPUT_TYPE_TUNER, 1, 0, V4L2_STD_PAL_BG | V4L2_STD_NTSC_M, 0},
{1, "S-Video", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG | V4L2_STD_NTSC_M, 0},
{ 0, "Composite", V4L2_INPUT_TYPE_TUNER, 1, 0,
V4L2_STD_PAL_BG | V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 1, "S-Video", V4L2_INPUT_TYPE_CAMERA, 2, 0,
V4L2_STD_PAL_BG | V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
};

static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
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1 change: 0 additions & 1 deletion drivers/media/video/cx18/cx18-cards.c
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Original file line number Diff line number Diff line change
Expand Up @@ -546,7 +546,6 @@ int cx18_get_input(struct cx18 *cx, u16 index, struct v4l2_input *input)
"Component 1"
};

memset(input, 0, sizeof(*input));
if (index >= cx->nof_inputs)
return -EINVAL;
input->index = index;
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1 change: 0 additions & 1 deletion drivers/media/video/cx23885/cx23885-video.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1126,7 +1126,6 @@ static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
if (0 == INPUT(n)->type)
return -EINVAL;

memset(i, 0, sizeof(*i));
i->index = n;
i->type = V4L2_INPUT_TYPE_CAMERA;
strcpy(i->name, iname[INPUT(n)->type]);
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1 change: 1 addition & 0 deletions drivers/media/video/et61x251/et61x251_core.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1610,6 +1610,7 @@ et61x251_vidioc_enuminput(struct et61x251_device* cam, void __user * arg)
memset(&i, 0, sizeof(i));
strcpy(i.name, "Camera");
i.type = V4L2_INPUT_TYPE_CAMERA;
i.capabilities = V4L2_IN_CAP_STD;

if (copy_to_user(arg, &i, sizeof(i)))
return -EFAULT;
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18 changes: 9 additions & 9 deletions drivers/media/video/hexium_gemini.c
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Expand Up @@ -37,15 +37,15 @@ static int hexium_num;

#define HEXIUM_INPUTS 9
static struct v4l2_input hexium_inputs[HEXIUM_INPUTS] = {
{ 0, "CVBS 1", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 1, "CVBS 2", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 2, "CVBS 3", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 3, "CVBS 4", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 4, "CVBS 5", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 5, "CVBS 6", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 6, "Y/C 1", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 7, "Y/C 2", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 8, "Y/C 3", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 0, "CVBS 1", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 1, "CVBS 2", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 2, "CVBS 3", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 3, "CVBS 4", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 4, "CVBS 5", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 5, "CVBS 6", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 6, "Y/C 1", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 7, "Y/C 2", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 8, "Y/C 3", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
};

#define HEXIUM_AUDIOS 0
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18 changes: 9 additions & 9 deletions drivers/media/video/hexium_orion.c
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Original file line number Diff line number Diff line change
Expand Up @@ -38,15 +38,15 @@ static int hexium_num;

#define HEXIUM_INPUTS 9
static struct v4l2_input hexium_inputs[HEXIUM_INPUTS] = {
{ 0, "CVBS 1", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 1, "CVBS 2", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 2, "CVBS 3", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 3, "CVBS 4", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 4, "CVBS 5", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 5, "CVBS 6", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 6, "Y/C 1", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 7, "Y/C 2", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 8, "Y/C 3", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ 0, "CVBS 1", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 1, "CVBS 2", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 2, "CVBS 3", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 3, "CVBS 4", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 4, "CVBS 5", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 5, "CVBS 6", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 6, "Y/C 1", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 7, "Y/C 2", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ 8, "Y/C 3", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
};

#define HEXIUM_AUDIOS 0
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2 changes: 0 additions & 2 deletions drivers/media/video/ivtv/ivtv-cards.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1313,7 +1313,6 @@ int ivtv_get_input(struct ivtv *itv, u16 index, struct v4l2_input *input)
"Composite 3"
};

memset(input, 0, sizeof(*input));
if (index >= itv->nof_inputs)
return -EINVAL;
input->index = index;
Expand All @@ -1331,7 +1330,6 @@ int ivtv_get_output(struct ivtv *itv, u16 index, struct v4l2_output *output)
{
const struct ivtv_card_output *card_output = itv->card->video_outputs + index;

memset(output, 0, sizeof(*output));
if (index >= itv->card->nof_outputs)
return -EINVAL;
output->index = index;
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8 changes: 4 additions & 4 deletions drivers/media/video/mxb.c
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Original file line number Diff line number Diff line change
Expand Up @@ -59,10 +59,10 @@ MODULE_PARM_DESC(debug, "Turn on/off device debugging (default:off).");
enum { TUNER, AUX1, AUX3, AUX3_YC };

static struct v4l2_input mxb_inputs[MXB_INPUTS] = {
{ TUNER, "Tuner", V4L2_INPUT_TYPE_TUNER, 1, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ AUX1, "AUX1", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ AUX3, "AUX3 Composite", V4L2_INPUT_TYPE_CAMERA, 4, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ AUX3_YC, "AUX3 S-Video", V4L2_INPUT_TYPE_CAMERA, 4, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
{ TUNER, "Tuner", V4L2_INPUT_TYPE_TUNER, 1, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ AUX1, "AUX1", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ AUX3, "AUX3 Composite", V4L2_INPUT_TYPE_CAMERA, 4, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
{ AUX3_YC, "AUX3 S-Video", V4L2_INPUT_TYPE_CAMERA, 4, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
};

/* this array holds the information, which port of the saa7146 each
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1 change: 0 additions & 1 deletion drivers/media/video/saa7134/saa7134-video.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1748,7 +1748,6 @@ static int saa7134_enum_input(struct file *file, void *priv,
return -EINVAL;
if (NULL == card_in(dev, i->index).name)
return -EINVAL;
memset(i, 0, sizeof(*i));
i->index = n;
i->type = V4L2_INPUT_TYPE_CAMERA;
strcpy(i->name, card_in(dev, n).name);
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1 change: 1 addition & 0 deletions drivers/media/video/sn9c102/sn9c102_core.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2189,6 +2189,7 @@ sn9c102_vidioc_enuminput(struct sn9c102_device* cam, void __user * arg)
memset(&i, 0, sizeof(i));
strcpy(i.name, "Camera");
i.type = V4L2_INPUT_TYPE_CAMERA;
i.capabilities = V4L2_IN_CAP_STD;

if (copy_to_user(arg, &i, sizeof(i)))
return -EFAULT;
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1 change: 0 additions & 1 deletion drivers/media/video/timblogiw.c
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Original file line number Diff line number Diff line change
Expand Up @@ -369,7 +369,6 @@ static int timblogiw_enuminput(struct file *file, void *priv,
if (inp->index != 0)
return -EINVAL;

memset(inp, 0, sizeof(*inp));
inp->index = 0;

strncpy(inp->name, "Timb input 1", sizeof(inp->name) - 1);
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3 changes: 0 additions & 3 deletions drivers/media/video/vino.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2954,9 +2954,6 @@ static int vino_enum_input(struct file *file, void *__fh,
if (input == VINO_INPUT_NONE)
return -EINVAL;

memset(i, 0, sizeof(struct v4l2_input));

i->index = index;
i->type = V4L2_INPUT_TYPE_CAMERA;
i->std = vino_inputs[input].std;
strcpy(i->name, vino_inputs[input].name);
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6 changes: 0 additions & 6 deletions drivers/media/video/zoran/zoran_driver.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2449,11 +2449,6 @@ static int zoran_enum_input(struct file *file, void *__fh,

if (inp->index >= zr->card.inputs)
return -EINVAL;
else {
int id = inp->index;
memset(inp, 0, sizeof(*inp));
inp->index = id;
}

strncpy(inp->name, zr->card.input[inp->index].name,
sizeof(inp->name) - 1);
Expand Down Expand Up @@ -2503,7 +2498,6 @@ static int zoran_enum_output(struct file *file, void *__fh,
if (outp->index != 0)
return -EINVAL;

memset(outp, 0, sizeof(*outp));
outp->index = 0;
outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
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2 changes: 0 additions & 2 deletions drivers/staging/cx25821/cx25821-video.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1272,8 +1272,6 @@ int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i)
if (0 == INPUT(n)->type)
return -EINVAL;

memset(i, 0, sizeof(*i));
i->index = n;
i->type = V4L2_INPUT_TYPE_CAMERA;
strcpy(i->name, iname[INPUT(n)->type]);

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