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. Moreover dpu_hw_dsc_init() can not return NULL.
Replace all dpu_rm_init()'s IS_ERR_OR_NULL() calls with IS_ERR().
This follows the commit 740828c73a36 ("drm/msm/dpu: fix error handling
in dpu_rm_init"), which removed IS_ERR_OR_NULL() from RM init code, but
then the commit f2803ee91a41 ("drm/msm/disp/dpu1: Add DSC support in
RM") added it back for DSC init.
Suggested-by: Marijn Suijten <marijn.suijten@xxxxxxxxxxxxxx>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
index f0fc70422e56..dffd3dd0a877 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
@@ -247,7 +247,7 @@ int dpu_rm_init(struct dpu_rm *rm,
const struct dpu_dsc_cfg *dsc = &cat->dsc[i];
hw = dpu_hw_dsc_init(dsc, mmio);
- if (IS_ERR_OR_NULL(hw)) {
+ if (IS_ERR(hw)) {
rc = PTR_ERR(hw);
DPU_ERROR("failed dsc object creation: err %d\n", rc);
goto fail;
--
2.39.2
