Libuvc - prevent ioctl call nullptr dereferencing: Upon device disconnect event the libuvc underlying object is being automatically reset while its owner continue to use it. This fix rectifies the library control flow by adding input validation
Libuvc - prevent ioctl call nullptr dereferencing:
Upon device disconnect event the libuvc underlying object is being automatically reset while its owner continue to use it.
This fix rectifies the library control flow by adding input validation

Change-Id: Iea8a5fd617a3ff2d1cfe9eae867d8838f9547c15
Signed-off-by: Evgeni Raikhel <f85458431d26324487c02be81bf1e902412cb12e@intel.com>

IntelRealSense/librealsense,IntelRealSense/librealsense,IntelRealSense/librealsense,IntelRealSense/librealsense,IntelRealSense/librealsense,IntelRealSense/librealsense,IntelRealSense/librealsense,IntelRealSense/librealsense,IntelRealSense/librealsense