[Qemu-devel] [STABLE][PATCH 09/10] qcow2: Don't ignore immediate read/write failures

[Kevin Wolf <kwolf@redhat.com>]

Returning -EIO is far from optimal, but at least it's an error code.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 block/qcow2.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/block/qcow2.c b/block/qcow2.c
index 4ae8f19..f6f8980 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -467,8 +467,10 @@ static void qcow_aio_read_cb(void *opaque, int ret)
         acb->hd_aiocb = bdrv_aio_readv(s->hd,
                             (acb->cluster_offset >> 9) + index_in_cluster,
                             &acb->hd_qiov, acb->n, qcow_aio_read_cb, acb);
-        if (acb->hd_aiocb == NULL)
+        if (acb->hd_aiocb == NULL) {
+            ret = -EIO;
             goto done;
+        }
     }
 
     return;
@@ -620,8 +622,10 @@ static void qcow_aio_write_cb(void *opaque, int ret)
                                     (acb->cluster_offset >> 9) + index_in_cluster,
                                     &acb->hd_qiov, acb->n,
                                     qcow_aio_write_cb, acb);
-    if (acb->hd_aiocb == NULL)
+    if (acb->hd_aiocb == NULL) {
+        ret = -EIO;
         goto done;
+    }
 
     return;
 
-- 
1.6.6.1