Using IS_ERR_OR_NULL() together with PTR_ERR() is a typical mistake. If the value is NULL, then the function will return 0 instead of a proper return code. Replace IS_ERR_OR_NULL() with IS_ERR() in the dpu_hw_intr_init() error check. Reviewed-by: Jessica Zhang <quic_jesszhan@xxxxxxxxxxx> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> --- 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 3b6ed60e1143..8fa1f8f52e70 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -1150,7 +1150,7 @@ static int dpu_kms_hw_init(struct msm_kms *kms) } dpu_kms->hw_intr = dpu_hw_intr_init(dpu_kms->mmio, dpu_kms->catalog); - if (IS_ERR_OR_NULL(dpu_kms->hw_intr)) { + if (IS_ERR(dpu_kms->hw_intr)) { rc = PTR_ERR(dpu_kms->hw_intr); DPU_ERROR("hw_intr init failed: %d\n", rc); dpu_kms->hw_intr = NULL; -- 2.39.2