net/9p: fix error path of p9_virtio_probe
[ Upstream commit 92aef4675d
]
Currently when virtio_find_single_vq fails, we go through del_vqs which
throws a warning (Trying to free already-free IRQ). Skip del_vqs if vq
allocation failed.
Link: http://lkml.kernel.org/r/20180524101021.49880-1-jean-philippe.brucker@arm.com
Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Ron Minnich <rminnich@sandia.gov>
Cc: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
parent
4cd195263e
commit
c2842800d6
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@ -571,7 +571,7 @@ static int p9_virtio_probe(struct virtio_device *vdev)
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chan->vq = virtio_find_single_vq(vdev, req_done, "requests");
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if (IS_ERR(chan->vq)) {
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err = PTR_ERR(chan->vq);
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goto out_free_vq;
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goto out_free_chan;
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}
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chan->vq->vdev->priv = chan;
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spin_lock_init(&chan->lock);
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@ -624,6 +624,7 @@ out_free_tag:
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kfree(tag);
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out_free_vq:
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vdev->config->del_vqs(vdev);
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out_free_chan:
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kfree(chan);
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fail:
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return err;
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