[PATCH] iommufd: unlock ictx->vfio_compat before return.

Saud Farooqui posted 1 patch 4 years ago
drivers/iommu/iommufd/vfio_compat.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
[PATCH] iommufd: unlock ictx->vfio_compat before return.
Posted by Saud Farooqui 4 years ago
cocci warning: drivers/iommu/iommufd/vfio_compat.c:494:2-8: preceding
lock on line 491

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Saud Farooqui <farooqui_saud@hotmail.com>
---
 drivers/iommu/iommufd/vfio_compat.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/iommufd/vfio_compat.c b/drivers/iommu/iommufd/vfio_compat.c
index 5b196de00ff9..d9347df48cc8 100644
--- a/drivers/iommu/iommufd/vfio_compat.c
+++ b/drivers/iommu/iommufd/vfio_compat.c
@@ -491,8 +491,10 @@ void vfio_group_unset_iommufd(void *iommufd, struct list_head *device_list)
 		return;
 	mutex_lock(&ictx->vfio_compat);
 	ioas = get_compat_ioas(ictx);
-	if (IS_ERR(ioas))
+	if (IS_ERR(ioas)) {
+		mutex_unlock(&ictx->vfio_compat);
 		return;
+	}
 
 	ioas_id = ioas->obj.id;
 	iommufd_put_object(&ioas->obj);
-- 
2.25.1