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facetimehd: check index parameter in enum_framesizes()/enum_frameintervals()

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otherwise we might have callers trying all possible index value which takes a lot
of time.
This commit is contained in:
Sven Schnelle
2015-11-28 16:12:19 +01:00
parent ad486d4522
commit b93fbfc22b
1 changed files with 6 additions and 0 deletions
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6
fthd_v4l2.c
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@@ -533,6 +533,9 @@ static int fthd_v4l2_ioctl_s_parm(struct file *filp, void *priv,
static int fthd_v4l2_ioctl_enum_framesizes(struct file *filp, void *priv, static int fthd_v4l2_ioctl_enum_framesizes(struct file *filp, void *priv,
struct v4l2_frmsizeenum *sizes) struct v4l2_frmsizeenum *sizes)
{ {
if (sizes->index)
return -EINVAL;
sizes->type = V4L2_FRMSIZE_TYPE_CONTINUOUS; sizes->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;
sizes->stepwise.min_width = 320; sizes->stepwise.min_width = 320;
sizes->stepwise.max_width = 2560; sizes->stepwise.max_width = 2560;
@@ -548,6 +551,9 @@ static int fthd_v4l2_ioctl_enum_frameintervals(struct file *filp, void *priv,
{ {
pr_debug("%s\n", __FUNCTION__); pr_debug("%s\n", __FUNCTION__);
if (interval->index)
return -EINVAL;
if (interval->pixel_format != V4L2_PIX_FMT_YUYV && if (interval->pixel_format != V4L2_PIX_FMT_YUYV &&
interval->pixel_format != V4L2_PIX_FMT_YVYU && interval->pixel_format != V4L2_PIX_FMT_YVYU &&
interval->pixel_format != V4L2_PIX_FMT_NV16) interval->pixel_format != V4L2_PIX_FMT_NV16)