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authorKevin Wolf <kwolf@redhat.com>2010-01-20 15:03:03 +0100
committerAnthony Liguori <aliguori@us.ibm.com>2010-01-26 14:59:19 -0600
commitf2b7c8b37045e0e030ef027cfb6d574558fb732a (patch)
treeac13554b4a4c6676b7b07d23e90fd77fcc3dd956 /block/qcow2-refcount.c
parent9a8c4cceaf670193270995b95378faa3867db999 (diff)
qcow2: Fix error handling in grow_refcount_table
Return the appropriate error code instead of -EIO. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'block/qcow2-refcount.c')
-rw-r--r--block/qcow2-refcount.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index 3a2d44a170..6f449c6a70 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -168,9 +168,12 @@ static int grow_refcount_table(BlockDriverState *bs, int min_size)
cpu_to_be64w((uint64_t*)data, table_offset);
cpu_to_be32w((uint32_t*)(data + 8), refcount_table_clusters);
- if (bdrv_pwrite(s->hd, offsetof(QCowHeader, refcount_table_offset),
- data, sizeof(data)) != sizeof(data))
+ ret = bdrv_pwrite(s->hd, offsetof(QCowHeader, refcount_table_offset),
+ data, sizeof(data));
+ if (ret != sizeof(data)) {
goto fail;
+ }
+
qemu_free(s->refcount_table);
old_table_offset = s->refcount_table_offset;
old_table_size = s->refcount_table_size;
@@ -183,7 +186,7 @@ static int grow_refcount_table(BlockDriverState *bs, int min_size)
return 0;
fail:
qemu_free(new_table);
- return -EIO;
+ return ret < 0 ? ret : -EIO;
}