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| author | Jason Liu <jason.hui.liu@nxp.com> | 2021-11-30 21:03:44 -0600 |
|---|---|---|
| committer | Jason Liu <jason.hui.liu@nxp.com> | 2021-12-01 00:19:31 -0600 |
| commit | 09ec61ac13c49639c269099a1dcc22a52e120612 (patch) | |
| tree | 8c54227c51696a8cfc3cb4c6dcb7376b50b3bb80 /drivers/virtio | |
| parent | 14925273fec5f423a8361c6d040012df7198a6e2 (diff) | |
| parent | f00712e27083550be3031099b7697925533a6e01 (diff) | |
Merge tag 'v5.15.5' into lf-5.15.y
This is the 5.15.5 stable release
* tag 'v5.15.5': (1261 commits)
Linux 5.15.5
ALSA: hda: hdac_stream: fix potential locking issue in snd_hdac_stream_assign()
ALSA: hda: hdac_ext_stream: fix potential locking issues
...
Conflicts:
arch/powerpc/platforms/85xx/Makefile
drivers/crypto/caam/caampkc.c
drivers/gpu/drm/bridge/nwl-dsi.c
drivers/gpu/drm/imx/imx-drm-core.c
drivers/remoteproc/imx_rproc.c
drivers/soc/imx/gpcv2.c
include/linux/rpmsg.h
Diffstat (limited to 'drivers/virtio')
| -rw-r--r-- | drivers/virtio/virtio_ring.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 3035bb6f5458..d1f47327f6cf 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -1065,6 +1065,8 @@ static int virtqueue_add_indirect_packed(struct vring_virtqueue *vq, head = vq->packed.next_avail_idx; desc = alloc_indirect_packed(total_sg, gfp); + if (!desc) + return -ENOMEM; if (unlikely(vq->vq.num_free < 1)) { pr_debug("Can't add buf len 1 - avail = 0\n"); @@ -1176,6 +1178,7 @@ static inline int virtqueue_add_packed(struct virtqueue *_vq, unsigned int i, n, c, descs_used, err_idx; __le16 head_flags, flags; u16 head, id, prev, curr, avail_used_flags; + int err; START_USE(vq); @@ -1191,9 +1194,14 @@ static inline int virtqueue_add_packed(struct virtqueue *_vq, BUG_ON(total_sg == 0); - if (virtqueue_use_indirect(_vq, total_sg)) - return virtqueue_add_indirect_packed(vq, sgs, total_sg, - out_sgs, in_sgs, data, gfp); + if (virtqueue_use_indirect(_vq, total_sg)) { + err = virtqueue_add_indirect_packed(vq, sgs, total_sg, out_sgs, + in_sgs, data, gfp); + if (err != -ENOMEM) + return err; + + /* fall back on direct */ + } head = vq->packed.next_avail_idx; avail_used_flags = vq->packed.avail_used_flags; |