[Qemu-devel] [PATCH 12/12] vpc: Add missing error handling in alloc_block

[Kevin Wolf <kwolf@redhat.com>]

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
---
 block/vpc.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/block/vpc.c b/block/vpc.c
index 75d7d4a..89a5ee2 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -362,8 +362,11 @@ static int64_t alloc_block(BlockDriverState* bs, int64_t sector_num)
 
     // Initialize the block's bitmap
     memset(bitmap, 0xff, s->bitmap_size);
-    bdrv_pwrite_sync(bs->file, s->free_data_block_offset, bitmap,
+    ret = bdrv_pwrite_sync(bs->file, s->free_data_block_offset, bitmap,
         s->bitmap_size);
+    if (ret < 0) {
+        return ret;
+    }
 
     // Write new footer (the old one will be overwritten)
     s->free_data_block_offset += s->block_size + s->bitmap_size;
-- 
1.7.6.4