From: Jean-Philippe Brucker <jean-philippe.brucker@xxxxxxx> [ Upstream commit 92aef4675d5b1b55404e1532379e343bed0e5cf2 ] 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@xxxxxxx Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@xxxxxxx> Reviewed-by: Greg Kurz <groug@xxxxxxxx> Cc: Eric Van Hensbergen <ericvh@xxxxxxxxx> Cc: Ron Minnich <rminnich@xxxxxxxxxx> Cc: Latchesar Ionkov <lucho@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Dominique Martinet <dominique.martinet@xxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> --- net/9p/trans_virtio.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c index 05006cbb3361..eaacce086427 100644 --- a/net/9p/trans_virtio.c +++ b/net/9p/trans_virtio.c @@ -563,7 +563,7 @@ static int p9_virtio_probe(struct virtio_device *vdev) chan->vq = virtio_find_single_vq(vdev, req_done, "requests"); if (IS_ERR(chan->vq)) { err = PTR_ERR(chan->vq); - goto out_free_vq; + goto out_free_chan; } chan->vq->vdev->priv = chan; spin_lock_init(&chan->lock); @@ -616,6 +616,7 @@ static int p9_virtio_probe(struct virtio_device *vdev) kfree(tag); out_free_vq: vdev->config->del_vqs(vdev); +out_free_chan: kfree(chan); fail: return err; -- 2.17.1
