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| author | weiyongjun (A) <weiyongjun1@huawei.com> | 2017-10-17 15:11:22 +0300 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2017-11-06 20:26:26 +0300 |
| commit | 105a004e2187609a74f75d55fd0f9a054b49d60a (patch) | |
| tree | 8e350aeaa7f8ab65082fb41aec6ff94f72bba7c7 /drivers/iommu | |
| parent | a593472591a5cf2d91244bc3f319c9dd91119343 (diff) | |
| download | linux-105a004e2187609a74f75d55fd0f9a054b49d60a.tar.xz | |
iommu/ipmmu-vmsa: Fix return value check in ipmmu_find_group_dma()
In case of error, the function iommu_group_get() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.
Fixes: 3ae47292024f ("iommu/ipmmu-vmsa: Add new IOMMU_DOMAIN_DMA ops")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/ipmmu-vmsa.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c index af8140054273..00e88a88ee3a 100644 --- a/drivers/iommu/ipmmu-vmsa.c +++ b/drivers/iommu/ipmmu-vmsa.c @@ -871,7 +871,7 @@ static struct iommu_group *ipmmu_find_group_dma(struct device *dev) sibling = ipmmu_find_sibling_device(dev); if (sibling) group = iommu_group_get(sibling); - if (!sibling || IS_ERR(group)) + if (!sibling || !group) group = generic_device_group(dev); return group; |