msm: camera: Add null check for VFE subdev
If vfe configuration is called after vfe subdev is released, kernel crash happens, hence add null check for vfe subdev. Change-Id: Ib38ed90f4d756278a7a0a3a24712ee601b32e403 Signed-off-by:Lakshmi Narayana Kalavala <lkalaval@codeaurora.org> Signed-off-by:
Mingcheng Zhu <mingchen@codeaurora.org>
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