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| author | Qiushi Wu <wu000273@umn.edu> | 2020-05-27 21:01:09 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-24 17:50:36 +0200 |
| commit | f4fbb592d9d72d85bc6a62b0a18a09d3d9a7c4e6 (patch) | |
| tree | 02190d853774183f6c18be0635e1df9d4d3dd588 /drivers/vfio | |
| parent | 1957ac8d1b4f10c38aa97f1dc60eb4aeb18d680e (diff) | |
| download | linux-f4fbb592d9d72d85bc6a62b0a18a09d3d9a7c4e6.tar.gz linux-f4fbb592d9d72d85bc6a62b0a18a09d3d9a7c4e6.tar.bz2 linux-f4fbb592d9d72d85bc6a62b0a18a09d3d9a7c4e6.zip | |
vfio/mdev: Fix reference count leak in add_mdev_supported_type
[ Upstream commit aa8ba13cae3134b8ef1c1b6879f66372531da738 ]
kobject_init_and_add() takes reference even when it fails.
If this function returns an error, kobject_put() must be called to
properly clean up the memory associated with the object. Thus,
replace kfree() by kobject_put() to fix this issue. Previous
commit "b8eb718348b8" fixed a similar problem.
Fixes: 7b96953bc640 ("vfio: Mediated device Core driver")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/mdev/mdev_sysfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/vfio/mdev/mdev_sysfs.c b/drivers/vfio/mdev/mdev_sysfs.c index 7570c7602ab4..f32c582611eb 100644 --- a/drivers/vfio/mdev/mdev_sysfs.c +++ b/drivers/vfio/mdev/mdev_sysfs.c @@ -110,7 +110,7 @@ static struct mdev_type *add_mdev_supported_type(struct mdev_parent *parent, "%s-%s", dev_driver_string(parent->dev), group->name); if (ret) { - kfree(type); + kobject_put(&type->kobj); return ERR_PTR(ret); } |