* [PATCH] iommu/omap: Increase group ref in .device_group()
@ 2018-03-01 11:22 Jeffy Chen
2018-03-15 14:55 ` Joerg Roedel
0 siblings, 1 reply; 2+ messages in thread
From: Jeffy Chen @ 2018-03-01 11:22 UTC (permalink / raw)
To: linux-kernel; +Cc: robin.murphy, Jeffy Chen, iommu, Joerg Roedel
Increase group refcounting in omap_iommu_device_group().
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
---
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 e135ab830ebf..c33b7b104e72 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1536,7 +1536,7 @@ static struct iommu_group *omap_iommu_device_group(struct device *dev)
struct iommu_group *group = ERR_PTR(-EINVAL);
if (arch_data->iommu_dev)
- group = arch_data->iommu_dev->group;
+ group = iommu_group_ref_get(arch_data->iommu_dev->group);
return group;
}
--
2.11.0
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2018-03-01 11:22 [PATCH] iommu/omap: Increase group ref in .device_group() Jeffy Chen
2018-03-15 14:55 ` Joerg Roedel
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