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v4l2: guard use of ENODATA with #ifdef

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Not all systems with v4l have ENODATA defined, so check that we have it
before attempting to use it.

https://bugzilla.gnome.org/show_bug.cgi?id=722953
This commit is contained in:
Ryan Lortie 2014-01-25 02:06:00 -05:00 committed by Sebastian Dröge
parent 8054cd5df3
commit a46f667853
1 changed files with 5 additions and 1 deletions
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6
sys/v4l2/v4l2_calls.c
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@ -205,8 +205,12 @@ gst_v4l2_fill_lists (GstV4l2Object * v4l2object)
standard.index = n; standard.index = n;
if (v4l2_ioctl (v4l2object->video_fd, VIDIOC_ENUMSTD, &standard) < 0) { if (v4l2_ioctl (v4l2object->video_fd, VIDIOC_ENUMSTD, &standard) < 0) {
if (errno == EINVAL || errno == ENOTTY || errno == ENODATA) if (errno == EINVAL || errno == ENOTTY)
break; /* end of enumeration */ break; /* end of enumeration */
#ifdef ENODATA
else if (errno == ENODATA)
break; /* end of enumeration, as of Linux 3.7-rc1 */
#endif
else { else {
GST_ELEMENT_ERROR (e, RESOURCE, SETTINGS, GST_ELEMENT_ERROR (e, RESOURCE, SETTINGS,
(_("Failed to query norm on device '%s'."), (_("Failed to query norm on device '%s'."),