From: Qiushi Wu wu000273@umn.edu
[ Upstream commit 7cc31613734c4870ae32f5265d576ef296621343 ]
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 wu000273@umn.edu Link: https://lore.kernel.org/r/20200527210020.6522-1-wu000273@umn.edu Signed-off-by: Joerg Roedel jroedel@suse.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iommu/iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -206,7 +206,7 @@ again: mutex_lock(&iommu_group_mutex); ida_remove(&iommu_group_ida, group->id); mutex_unlock(&iommu_group_mutex); - kfree(group); + kobject_put(&group->kobj); return ERR_PTR(ret); }