Messages in this thread Patch in this message | | | From | wu000273@umn ... | Subject | [PATCH] iommu: Fix reference count leak in iommu_group_alloc. | Date | Wed, 27 May 2020 16:00:19 -0500 |
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From: Qiushi Wu <wu000273@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 <wu000273@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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