vfio/mdev: Fix reference count leak in add_mdev_supported_type
[ Upstream commitaa8ba13cae
] 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:7b96953bc6
("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>
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@ -110,7 +110,7 @@ static struct mdev_type *add_mdev_supported_type(struct mdev_parent *parent,
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"%s-%s", dev_driver_string(parent->dev),
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group->name);
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if (ret) {
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kfree(type);
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kobject_put(&type->kobj);
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return ERR_PTR(ret);
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}
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