path: root/arch
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authorStephen Boyd <swboyd@chromium.org>2018-11-29 08:38:26 -0800
committerAndy Gross <andy.gross@linaro.org>2018-11-29 17:41:53 -0600
commitb601f73130a375c912d9f2ec93c5f3cea5d6a3da (patch)
tree567a9421a41e1c9705adf1f4dc9fe20d196dcf7f /arch
parentb7e386177fa53c3d704754095bd81189ef43bce4 (diff)
drm: msm: Check cmd_db_read_aux_data() for failure
We need to check the call to cmd_db_read_aux_data() for the error case, so that we don't continue and use potentially uninitialized values for 'pri_count' and 'sec_count'. Otherwise, we get the following compiler warnings: drivers/gpu/drm/msm/adreno/a6xx_gmu.c: In function 'a6xx_gmu_rpmh_arc_votes_init.isra.12': drivers/gpu/drm/msm/adreno/a6xx_gmu.c:943:12: warning: 'pri_count' is used uninitialized in this function [-Wuninitialized] pri_count >>= 1; ^~~ drivers/gpu/drm/msm/adreno/a6xx_gmu.c:948:12: warning: 'sec_count' may be used uninitialized in this function [-Wmaybe-uninitialized] sec_count >>= 1; ^~~ Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Reported-by: kbuild test robot <lkp@intel.com> Cc: Jordan Crouse <jcrouse@codeaurora.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Evan Green <evgreen@chromium.org> Cc: Jordan Crouse <jcrouse@codeaurora.org> Cc: Rob Clark <robdclark@gmail.com> Fixes: ed3cafa79ea7 ("soc: qcom: cmd-db: Stop memcpy()ing in cmd_db_read_aux_data()") Signed-off-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Andy Gross <andy.gross@linaro.org> Acked-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Andy Gross <andy.gross@linaro.org>
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