diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-03-27 10:19:32 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-03-27 10:19:32 +0300 |
| commit | e47ff590cc57a3468c1f77e5f2494bbaefdd4371 (patch) | |
| tree | 7c71b3832c0d805b0ee6daa1aaaa50326b65654f /drivers/vfio/vfio.c | |
| parent | 2e58cafa0bbde529a9f44300382f60f6ce46d7d2 (diff) | |
| parent | c02ed2e75ef4c74e41e421acb4ef1494671585e8 (diff) | |
| download | linux-e47ff590cc57a3468c1f77e5f2494bbaefdd4371.tar.xz | |
Merge 4.11-rc4 into usb-next
This resolves a merge issue in the gadget code, and we want the USB
fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/vfio/vfio.c')
| -rw-r--r-- | drivers/vfio/vfio.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index 609f4f982c74..561084ab387f 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -403,6 +403,7 @@ static void vfio_group_release(struct kref *kref) struct iommu_group *iommu_group = group->iommu_group; WARN_ON(!list_empty(&group->device_list)); + WARN_ON(group->notifier.head); list_for_each_entry_safe(unbound, tmp, &group->unbound_list, unbound_next) { @@ -1573,6 +1574,10 @@ static int vfio_group_fops_open(struct inode *inode, struct file *filep) return -EBUSY; } + /* Warn if previous user didn't cleanup and re-init to drop them */ + if (WARN_ON(group->notifier.head)) + BLOCKING_INIT_NOTIFIER_HEAD(&group->notifier); + filep->private_data = group; return 0; @@ -1584,9 +1589,6 @@ static int vfio_group_fops_release(struct inode *inode, struct file *filep) filep->private_data = NULL; - /* Any user didn't unregister? */ - WARN_ON(group->notifier.head); - vfio_group_try_dissolve_container(group); atomic_dec(&group->opened); |