tree 5ae96e692816ddbb163d7478b4f4786b7c75d7b6
parent 58207a2eaaa5cdd7868358b79d7ffabc26c42bf4
author Sri Karri <sridur@codeaurora.org> 1521184574 +0530
committer Karsten Tausche <karsten@fairphone.com> 1542122547 +0100

mm-video-v4l2: Protect buffer access and increase input buffer size.

Protect buffer access for below scenarios:
*Increase the scope of buf_lock in free_buffer to avoid access
 of freed buffer for both input and output buffers. Also, add check
 before output buffer access.
*Disallow allocate buffer mode after client has called use buffer.
Allocate additional 512 bytes of memory for input buffers on top of
allocation size as per hardware requirement.

CRs-Fixed: 2119840

Issue: SEC-1431
Issue: SEC-1432
Change-Id: Ic570d8248806ee492f68b51cb73139cf5c5028e5
(cherry picked from commit https://source.codeaurora.org/quic/la/platform/hardware/qcom/media/commit/?id=d41a7a4c7d43fa67f2e4a487b8a1fb0aac38226d)