msm: camera: Fix mctl release crash issue.

After mctl release initialize pointer to NULL to
avoid crash.

Change-Id: Ia3e0b1b809f85760a92b5248f402df589c6ace04
Signed-off-by: Suresh Vankadara <svankada@codeaurora.org>
power: pm8921-charger: Fix delay in USB wall-charger removal

Avoid scheduling time optimization for the vin_min work. This
prevents delay in USB removal detection for USB wall-charger.

CRs-Fixed: 503243
Change-Id: I8074b4928a4d59a1681bc6d5a5ccb14869dc3c9d
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
(cherry picked from commit 304882701529ab00355a2840f937aaf110abfb53)

Signed-off-by: Satish Kamuju <skamuj@codeaurora.org>
msm: camera: Add NULL pointer check for regulator

To avoid potential crashes, Null pointer check is added
before regulator calls are made

Change-Id: I3c745ff0600971d07d10b7a537e6f2375a2bf4ab
Signed-off-by: Aditya Jonnalagadda <ajonnala@codeaurora.org>
Merge "msm: camera: Fix mctl release crash issue."
Merge "msm: camera: Add NULL pointer check for regulator"
Merge "power: pm8921-charger: Fix delay in USB wall-charger removal"