From 1fbfa49e57269c64cc9aaf0469da1629dc2f8983 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 1 Oct 2021 15:59:04 +0300
Subject: drm/msm/a3xx: fix error handling in a3xx_gpu_init()
Git-commit: 3eda901995371d390ef82d0b6462f4ea8efbcfdf
Patch-mainline: v5.15-rc6
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225

These error paths returned 1 on failure, instead of a negative error
code.  This would lead to an Oops in the caller.  A second problem is
that the check for "if (ret != -ENODATA)" did not work because "ret" was
set to 1.

Fixes: 5785dd7a8ef0 ("drm/msm: Fix duplicate gpu node in icc summary")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211001125904.GK2283@kili
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/msm/adreno/a3xx_gpu.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
index 4534633fe7cd..8fb847c174ff 100644
--- a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
@@ -571,13 +571,14 @@ struct msm_gpu *a3xx_gpu_init(struct drm_device *dev)
 	}
 
 	icc_path = devm_of_icc_get(&pdev->dev, "gfx-mem");
-	ret = IS_ERR(icc_path);
-	if (ret)
+	if (IS_ERR(icc_path)) {
+		ret = PTR_ERR(icc_path);
 		goto fail;
+	}
 
 	ocmem_icc_path = devm_of_icc_get(&pdev->dev, "ocmem");
-	ret = IS_ERR(ocmem_icc_path);
-	if (ret) {
+	if (IS_ERR(ocmem_icc_path)) {
+		ret = PTR_ERR(ocmem_icc_path);
 		/* allow -ENODATA, ocmem icc is optional */
 		if (ret != -ENODATA)
 			goto fail;
-- 
2.38.1