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-rw-r--r--drivers/virtio/virtio_ring.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 7ae3cba2f624..1e443629f76d 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -204,6 +204,11 @@ static inline int virtqueue_add(struct virtqueue *_vq,
204 204
205 BUG_ON(data == NULL); 205 BUG_ON(data == NULL);
206 206
207 if (unlikely(vq->broken)) {
208 END_USE(vq);
209 return -EIO;
210 }
211
207#ifdef DEBUG 212#ifdef DEBUG
208 { 213 {
209 ktime_t now = ktime_get(); 214 ktime_t now = ktime_get();
@@ -310,7 +315,7 @@ add_head:
310 * Caller must ensure we don't call this with other virtqueue operations 315 * Caller must ensure we don't call this with other virtqueue operations
311 * at the same time (except where noted). 316 * at the same time (except where noted).
312 * 317 *
313 * Returns zero or a negative error (ie. ENOSPC, ENOMEM). 318 * Returns zero or a negative error (ie. ENOSPC, ENOMEM, EIO).
314 */ 319 */
315int virtqueue_add_sgs(struct virtqueue *_vq, 320int virtqueue_add_sgs(struct virtqueue *_vq,
316 struct scatterlist *sgs[], 321 struct scatterlist *sgs[],
@@ -348,7 +353,7 @@ EXPORT_SYMBOL_GPL(virtqueue_add_sgs);
348 * Caller must ensure we don't call this with other virtqueue operations 353 * Caller must ensure we don't call this with other virtqueue operations
349 * at the same time (except where noted). 354 * at the same time (except where noted).
350 * 355 *
351 * Returns zero or a negative error (ie. ENOSPC, ENOMEM). 356 * Returns zero or a negative error (ie. ENOSPC, ENOMEM, EIO).
352 */ 357 */
353int virtqueue_add_outbuf(struct virtqueue *vq, 358int virtqueue_add_outbuf(struct virtqueue *vq,
354 struct scatterlist sg[], unsigned int num, 359 struct scatterlist sg[], unsigned int num,
@@ -370,7 +375,7 @@ EXPORT_SYMBOL_GPL(virtqueue_add_outbuf);
370 * Caller must ensure we don't call this with other virtqueue operations 375 * Caller must ensure we don't call this with other virtqueue operations
371 * at the same time (except where noted). 376 * at the same time (except where noted).
372 * 377 *
373 * Returns zero or a negative error (ie. ENOSPC, ENOMEM). 378 * Returns zero or a negative error (ie. ENOSPC, ENOMEM, EIO).
374 */ 379 */
375int virtqueue_add_inbuf(struct virtqueue *vq, 380int virtqueue_add_inbuf(struct virtqueue *vq,
376 struct scatterlist sg[], unsigned int num, 381 struct scatterlist sg[], unsigned int num,