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authorElias Naur <mail@eliasnaur.com>2023-03-11 13:05:25 -0600
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2023-03-26 11:48:18 +0300
commitd942bdc913c5a7f0895bfcb0180db3f279be246e (patch)
tree943e9f40827488d8275159d4428e3db5d07b4f6d /include/android/metadata
parente39f046f660a6d0954d81b92bd183e7ba679fa56 (diff)
libcamera: v4l2_device: openat(2) with O_CLOEXEC to cleanup after exec(3)
When an executable using libcamera calls exec(3) while a camera is in use, file descriptors corresponding to the V4L2 video devices are kept open has they have been created without O_CLOEXEC. This results in the video devices staying busy, preventing the new executable from using them: [91] ERROR V4L2 v4l2_videodevice.cpp:1047 /dev/video0[149:cap]: Unableto set format: Resource busy Fix this by opening video devices with O_CLOEXEC, which is generally a good idea in libraries. Signed-off-by: Elias Naur <mail@eliasnaur.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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