tree e4b912a1cf346f4a8d2ef2eed5cceebe06d4ad47
parent 89ab252a312e96449e568696b42e50081ba1f6a3
author Fei Zhang <feizhang@codeaurora.org> 1398746190 +0800
committer Fei Zhang <feizhang@codeaurora.org> 1404957945 +0800

QCamera2: use cam_lock when camera open

In dual Camera use case, when one camera opened and in preview status,
if second camera enter into open operation, in current code,
camera_open() will hold g_intf_lock until open finished. So during
second open, the operation needed by first camera will be blocked
when try to get g_intf_lock (example is preview frame bufDone).

So we need use cam_lock instead when opening, and not block other
camera obj's operation.

Change-Id: Ie6e4202be64735ce24a5a35b02be7eaf22c5d69d