Commit 28b13024 authored Sep 16, 2020 by Yan Zhao Committed by Alex Williamson Sep 22, 2020

vfio: fix a missed vfio group put in vfio_pin_pages

When error occurs, need to put vfio group after a successful get.

Fixes: 95fc87b4 ("vfio: Selective dirty page tracking if IOMMU backed device pins pages")
Signed-off-by: Yan Zhao <yan.y.zhao@intel.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

parent 7ef32e52

drivers/vfio/vfio.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -1949,8 +1949,10 @@ int vfio_pin_pages(struct device dev, unsigned long user_pfn, int npage,
		if (!group)
		return -ENODEV;

		if (group->dev_counter > 1)
		return -EINVAL;
		if (group->dev_counter > 1) {
		ret = -EINVAL;
		goto err_pin_pages;
		}

		ret = vfio_group_add_container_user(group);
		if (ret)