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authorWei Wang <wei.w.wang@intel.com>2018-08-16 15:50:56 +0800
committerMichael S. Tsirkin <mst@redhat.com>2018-08-22 00:56:24 +0300
commit74cf5b169c4c197a8c66feaf1a98bb009fa306f8 (patch)
tree5ca79bd27159873eef68d25b3ef215b8341b3561 /drivers/virtio
parent94710cac0ef4ee177a63b5227664b38c95bbf703 (diff)
downloadlinux-74cf5b169c4c197a8c66feaf1a98bb009fa306f8.tar.bz2
virtio-balloon: remove BUG() in init_vqs
It's a bit overkill to use BUG when failing to add an entry to the stats_vq in init_vqs. So remove it and just return the error to the caller to bail out nicely. Signed-off-by: Wei Wang <wei.w.wang@intel.com> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/virtio')
-rw-r--r--drivers/virtio/virtio_balloon.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 3988c0914322..8100e77b1b0b 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -455,9 +455,13 @@ static int init_vqs(struct virtio_balloon *vb)
num_stats = update_balloon_stats(vb);
sg_init_one(&sg, vb->stats, sizeof(vb->stats[0]) * num_stats);
- if (virtqueue_add_outbuf(vb->stats_vq, &sg, 1, vb, GFP_KERNEL)
- < 0)
- BUG();
+ err = virtqueue_add_outbuf(vb->stats_vq, &sg, 1, vb,
+ GFP_KERNEL);
+ if (err) {
+ dev_warn(&vb->vdev->dev, "%s: add stat_vq failed\n",
+ __func__);
+ return err;
+ }
virtqueue_kick(vb->stats_vq);
}
return 0;