diff options
| -rw-r--r-- | drivers/iommu/arm/arm-smmu/arm-smmu.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c index 67b660b0551d..45b4aedd7ab1 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c @@ -1488,8 +1488,10 @@ static struct iommu_group *arm_smmu_device_group(struct device *dev) mutex_lock(&smmu->stream_map_mutex); for_each_cfg_sme(cfg, fwspec, i, idx) { if (group && smmu->s2crs[idx].group && - group != smmu->s2crs[idx].group) + group != smmu->s2crs[idx].group) { + mutex_unlock(&smmu->stream_map_mutex); return ERR_PTR(-EINVAL); + } group = smmu->s2crs[idx].group; } |