[PATCH 2/3] iommu/omap: Return ERR_PTR in device_group call-back

From: Joerg Roedel
Date: Wed Jun 28 2017 - 08:02:24 EST


From: Joerg Roedel <jroedel@xxxxxxx>

Make sure that the device_group callback returns an ERR_PTR
instead of NULL.

Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
---
drivers/iommu/omap-iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index 95dfca3..641e035 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -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;
--
2.7.4