[Qemu-devel] [PATCH] block: Fix memory leak in bdrv_next()

[Kevin Wolf <kwolf@redhat.com>]

When all BDSes have already been iterated and we return NULL, the
iterator must be freed, too.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 block/block-backend.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/block/block-backend.c b/block/block-backend.c
index 6928d61..c5fb251 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -329,7 +329,12 @@ BdrvNextIterator *bdrv_next(BdrvNextIterator *it, BlockDriverState **bs)
         *bs = it->bs;
     } while (*bs && bdrv_has_blk(*bs));
 
-    return *bs ? it : NULL;
+    if (*bs) {
+        return it;
+    } else {
+        g_free(it);
+        return NULL;
+    }
 }
 
 /*
-- 
1.8.3.1