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-rw-r--r--drivers/gpu/drm/sprd/sprd_dpu.c5
-rw-r--r--drivers/gpu/drm/sprd/sprd_dsi.c5
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sprd/sprd_dpu.c b/drivers/gpu/drm/sprd/sprd_dpu.c
index 06a3414ee43a..1637203ea103 100644
--- a/drivers/gpu/drm/sprd/sprd_dpu.c
+++ b/drivers/gpu/drm/sprd/sprd_dpu.c
@@ -790,6 +790,11 @@ static int sprd_dpu_context_init(struct sprd_dpu *dpu,
int ret;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(dev, "failed to get I/O resource\n");
+ return -EINVAL;
+ }
+
ctx->base = devm_ioremap(dev, res->start, resource_size(res));
if (!ctx->base) {
dev_err(dev, "failed to map dpu registers\n");
diff --git a/drivers/gpu/drm/sprd/sprd_dsi.c b/drivers/gpu/drm/sprd/sprd_dsi.c
index 911b3cddc264..12b67a5d5923 100644
--- a/drivers/gpu/drm/sprd/sprd_dsi.c
+++ b/drivers/gpu/drm/sprd/sprd_dsi.c
@@ -907,6 +907,11 @@ static int sprd_dsi_context_init(struct sprd_dsi *dsi,
struct resource *res;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(dev, "failed to get I/O resource\n");
+ return -EINVAL;
+ }
+
ctx->base = devm_ioremap(dev, res->start, resource_size(res));
if (!ctx->base) {
drm_err(dsi->drm, "failed to map dsi host registers\n");