disp: msm: sde: add proper null checks
This change adds proper null checks after using kcalloc and returns early to avoid accessing null ptr. Change-Id: I948ad37eb120e00c5f6e3ae2e3b967819cbd233b Signed-off-by:Samantha Tran <samtran@codeaurora.org> Signed-off-by:
Krishna Manikandan <mkrishn@codeaurora.org>
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