Protect the memory allocation with mhi channel lock in
diagfwd_read_work_fn() to avoid race condition while
freeing up the memory.
Change-Id: I3c06da2bdf649c7ef67864ce68d5cca1d91eff8e
Signed-off-by: Sreelakshmi Gownipalli <sgownipa@codeaurora.org>
Signed-off-by: Manoj Prabhu B <bmanoj@codeaurora.org>