Patchwork [04/19] qcow2: Return real error code in load_refcount_block

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Submitter Kevin Wolf
Date June 15, 2010, 2:19 p.m.
Message ID <1276611581-3757-5-git-send-email-kwolf@redhat.com>
Download mbox | patch
Permalink /patch/55686/
State New
Headers show

Comments

Kevin Wolf - June 15, 2010, 2:19 p.m.
This fixes load_refcount_block which completely ignored the return value of
write_refcount_block and always returned -EIO for bdrv_pwrite failure.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 block/qcow2-refcount.c |   11 ++++++++---
 1 files changed, 8 insertions(+), 3 deletions(-)

Patch

diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index 51948ae..41e1da9 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -93,14 +93,19 @@  static int load_refcount_block(BlockDriverState *bs,
     int ret;
 
     if (cache_refcount_updates) {
-        write_refcount_block(bs);
+        ret = write_refcount_block(bs);
+        if (ret < 0) {
+            return ret;
+        }
     }
 
     BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_LOAD);
     ret = bdrv_pread(bs->file, refcount_block_offset, s->refcount_block_cache,
                      s->cluster_size);
-    if (ret != s->cluster_size)
-        return -EIO;
+    if (ret < 0) {
+        return ret;
+    }
+
     s->refcount_block_cache_offset = refcount_block_offset;
     return 0;
 }