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    Subject[PATCH 5.17 512/772] drm/msm/dpu: fix error check return value of irq_of_parse_and_map()
    Date
    From: Lv Ruyi <lv.ruyi@zte.com.cn>

    [ Upstream commit 95093595914c17f32e1d6228b4db06fab8cebd35 ]

    The irq_of_parse_and_map() function returns 0 on failure, and does not
    return a negative value anyhow, so never enter this conditional branch.

    Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")
    Reported-by: Zeal Robot <zealci@zte.com.cn>
    Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
    Reviewed-by: Stephen Boyd <swboyd@chromium.org>
    Patchwork: https://patchwork.freedesktop.org/patch/483291/
    Link: https://lore.kernel.org/r/20220425090947.3498897-1-lv.ruyi@zte.com.cn
    Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
    index ddb76fe46948..ced3e00e4ad5 100644
    --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
    +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
    @@ -1262,7 +1262,7 @@ static int dpu_bind(struct device *dev, struct device *master, void *data)

    priv->kms = &dpu_kms->base;

    - return ret;
    + return 0;
    }

    static void dpu_unbind(struct device *dev, struct device *master, void *data)
    --
    2.35.1


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