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drm/bridge: anx7625: check the return on anx7625_aux_trans
[ Upstream commit d583e75 ] Clang static analysis reports this issue anx7625.c:876:13: warning: The left operand of '&' is a garbage value if (!(bcap & 0xOA01)) { ~~~~ ^ bcap is only set by a successful call to anx7625_aux_trans(). So check. Fixes: cd1637c ("drm/bridge: anx7625: add HDCP support") Signed-off-by: Tom Rix <trix@redhat.com> Fixes: adca62e ("drm/bridge: anx7625: Support reading edid through aux channel") Signed-off-by: Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220303201943.501746-1-trix@redhat.com Reviewed-by: Robert Foss <robert.foss@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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