From: Qiushi Wu <wu000...@umn.edu>

kobject_init_and_add() takes reference even when it fails.
Thus, when kobject_init_and_add() returns an error,
kobject_put() must be called to properly clean up the kobject.

Fixes: d72e31c93746 ("iommu: IOMMU Groups")
Signed-off-by: Qiushi Wu <wu000...@umn.edu>
---
 drivers/iommu/iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 1faa08c8bbb4..03d6a26687bc 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -510,7 +510,7 @@ struct iommu_group *iommu_group_alloc(void)
                                   NULL, "%d", group->id);
        if (ret) {
                ida_simple_remove(&iommu_group_ida, group->id);
-               kfree(group);
+               kobject_put(&group->kobj);
                return ERR_PTR(ret);
        }
 
-- 
2.17.1

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