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vfio/ap_ops: Add missed vfio_uninit_group_dev() 

Without this call an xarray entry is leaked when the vfio_ap device is
unprobed. It was missed when the below patch was rebased across the
dev_set patch. Keep the remove function in the same order as the error
unwind in probe.

Fixes: eb0feefd4c ("vfio/ap_ops: Convert to use vfio_register_group_dev()")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Tony Krowiak <akrowiak@linux.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Link: https://lore.kernel.org/r/0-v3-f9b50340cdbb+e4-ap_uninit_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Jason Gunthorpe 2021-09-21 09:11:59 -03:00 committed by Alex Williamson
parent 8bd8d1dff9
commit 42de956ca7
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/s390/crypto/vfio_ap_ops.c
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@ -361,6 +361,7 @@ err_list:
mutex_lock(&matrix_dev->lock);
list_del(&matrix_mdev->node);
mutex_unlock(&matrix_dev->lock);
vfio_uninit_group_dev(&matrix_mdev->vdev);
kfree(matrix_mdev);
err_dec_available:
atomic_inc(&matrix_dev->available_instances);
@ -376,9 +377,10 @@ static void vfio_ap_mdev_remove(struct mdev_device *mdev)
mutex_lock(&matrix_dev->lock);
vfio_ap_mdev_reset_queues(matrix_mdev);
list_del(&matrix_mdev->node);
mutex_unlock(&matrix_dev->lock);
vfio_uninit_group_dev(&matrix_mdev->vdev);
kfree(matrix_mdev);
atomic_inc(&matrix_dev->available_instances);
mutex_unlock(&matrix_dev->lock);
}
static ssize_t name_show(struct mdev_type *mtype,