[PATCH RFC/DO NOT MERGE 02/12] drm/msm: Properly handle msm_ioremap() without name

Krzysztof Kozlowski krzysztof.kozlowski at oss.qualcomm.com
Fri Aug 28 07:05:00 PDT 2026


msm_ioremap() accepts being called without name of the region to map and
in such case maps by index 0.  However error paths still use the name in
error message.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski at oss.qualcomm.com>
---
 drivers/gpu/drm/msm/msm_io_utils.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_io_utils.c b/drivers/gpu/drm/msm/msm_io_utils.c
index a6efe1eac271..93b94e330cb8 100644
--- a/drivers/gpu/drm/msm/msm_io_utils.c
+++ b/drivers/gpu/drm/msm/msm_io_utils.c
@@ -77,7 +77,8 @@ static void __iomem *_msm_ioremap(struct platform_device *pdev, const char *name
 
 	if (!res) {
 		if (!quiet)
-			DRM_DEV_ERROR(&pdev->dev, "failed to get memory resource: %s\n", name);
+			DRM_DEV_ERROR(&pdev->dev, "failed to get memory resource: %s\n",
+				      (name ? name : "#0"));
 		return ERR_PTR(-EINVAL);
 	}
 
@@ -86,7 +87,8 @@ static void __iomem *_msm_ioremap(struct platform_device *pdev, const char *name
 	ptr = devm_ioremap(&pdev->dev, res->start, size);
 	if (!ptr) {
 		if (!quiet)
-			DRM_DEV_ERROR(&pdev->dev, "failed to ioremap: %s\n", name);
+			DRM_DEV_ERROR(&pdev->dev, "failed to ioremap: %s\n",
+				      (name ? name : "#0"));
 		return ERR_PTR(-ENOMEM);
 	}
 

-- 
2.53.0




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