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| author | Qiushi Wu <wu000273@umn.edu> | 2020-05-27 16:00:19 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-03 08:16:42 +0200 |
| commit | 44ac6becd5c68be7bfe95335f7f8788174c1e02f (patch) | |
| tree | 4876f88e6c1a33c96d73d00517696b16b2347fe4 | |
| parent | 4f4a4bc9076866a661a8af7921e7405e9959139d (diff) | |
| download | linux-44ac6becd5c68be7bfe95335f7f8788174c1e02f.tar.gz linux-44ac6becd5c68be7bfe95335f7f8788174c1e02f.tar.bz2 linux-44ac6becd5c68be7bfe95335f7f8788174c1e02f.zip | |
iommu: Fix reference count leak in iommu_group_alloc.
[ 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>
| -rw-r--r-- | drivers/iommu/iommu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index dbcc13efaf3c..d609e14bb904 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -195,7 +195,7 @@ 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); } |