video device nodes are getting disappeared

[avinash-palleti]

while running gst pipeline if user interrupts in between with ctrl+c, next time when user start gst pipeline, device nodes under /dev/video* will get disappeared.
sudo gst-launch-1.0 -e v4l2src device=/dev/video2 ! autovideoconvert format=i420 width=1920 height=1080 framerate=30/1 ! vaapih264enc rate-control=cbr tune=high-compression ! qtmux ! filesink location=encoded_video.mp4

[avinash-palleti]

dmesg when we allow pipeline to exit after predefined frames,

[ 106.896502 ] uvcvideo: Non-zero status (-71) in video completion handler

dmesg when we press ctrl+c in between,

[ 131.946413 ] uvcvideo: Non-zero status (-71) in video completion handler
[ 145.719890 ] usb 2-4: Disable of device-initiated U1 failed.
[ 150.513417 ] usb 2-4: Disable of device-initiated U2 failed.

It shows that there is issue in device un-initialization sequence. Along with video device nodes, usb host device nodes are also getting disappeared.