iommu/omap: Return ERR_PTR in device_group call-back
authorJoerg Roedel <jroedel@suse.de>
Wed, 28 Jun 2017 10:50:16 +0000 (12:50 +0200)
committerJoerg Roedel <jroedel@suse.de>
Wed, 28 Jun 2017 11:29:45 +0000 (13:29 +0200)
Make sure that the device_group callback returns an ERR_PTR
instead of NULL.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
drivers/iommu/omap-iommu.c

index 95dfca36ccb993e90c21aadb8454272a1838b7b7..641e035cf86661b5da9239f8a60e28c252fa2f7e 100644 (file)
@@ -1309,7 +1309,7 @@ static void omap_iommu_remove_device(struct device *dev)
 static struct iommu_group *omap_iommu_device_group(struct device *dev)
 {
        struct omap_iommu_arch_data *arch_data = dev->archdata.iommu;
-       struct iommu_group *group = NULL;
+       struct iommu_group *group = ERR_PTR(-EINVAL);
 
        if (arch_data->iommu_dev)
                group = arch_data->iommu_dev->group;