UPSTREAM: iommu/rockchip: Don't feed NULL res pointers to devres

[firefly-linux-kernel-4.4.55.git] / drivers / iommu / rockchip-iommu.c

diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index 650c7e42afe85d005c139df3399167edb08ad4cd..ce1ed0deb384e429343dd97702c33bc526c93b39 100644 (file)
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1141,6 +1141,8 @@ static int rk_iommu_probe(struct platform_device *pdev)
 
        for (i = 0; i < num_res; i++) {
                res = platform_get_resource(pdev, IORESOURCE_MEM, i);
+               if (!res)
+                       continue;
                iommu->bases[i] = devm_ioremap_resource(&pdev->dev, res);
                if (IS_ERR(iommu->bases[i]))
                        continue;