Re: [PATCH v2] accel/qaic: initialize ret variable to 0

From: Jeffrey Hugo
Date: Tue May 23 2023 - 11:57:00 EST


On 5/17/2023 10:56 AM, Jeffrey Hugo wrote:
From: Tom Rix <trix@xxxxxxxxxx>

clang static analysis reports
drivers/accel/qaic/qaic_data.c:610:2: warning: Undefined or garbage
value returned to caller [core.uninitialized.UndefReturn]
return ret;
^~~~~~~~~~

From a code analysis of the function, the ret variable is only set some
of the time but is always returned. This suggests ret can return
uninitialized garbage. However BO allocation will ensure ret is always
set in reality.

Initialize ret to 0 to silence the warning.

Fixes: ff13be830333 ("accel/qaic: Add datapath")
Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
[jhugo: Reword commit text]
Signed-off-by: Jeffrey Hugo <quic_jhugo@xxxxxxxxxxx>

Pushed to drm-misc-fixes