From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Date: Fri, 27 Apr 2018 14:20:02 +0000 (+0300)
Subject: migration/block-dirty-bitmap: fix memory leak in dirty_bitmap_load_bits
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=16a2227893dc1d5cad78ed376ad1d7e300978fbe;p=qemu.git

migration/block-dirty-bitmap: fix memory leak in dirty_bitmap_load_bits

Release buf on error path too.

Bug was introduced in b35ebdf076d697bc "migration: add postcopy
migration of dirty bitmaps" with the whole function.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20180427142002.21930-3-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
CC: qemu-stable@nongnu.org
Signed-off-by: Eric Blake <eblake@redhat.com>
---

diff --git a/migration/block-dirty-bitmap.c b/migration/block-dirty-bitmap.c
index dd04f102d8..8819aabe3a 100644
--- a/migration/block-dirty-bitmap.c
+++ b/migration/block-dirty-bitmap.c
@@ -600,6 +600,7 @@ static int dirty_bitmap_load_bits(QEMUFile *f, DirtyBitmapLoadState *s)
         ret = qemu_get_buffer(f, buf, buf_size);
         if (ret != buf_size) {
             error_report("Failed to read bitmap bits");
+            g_free(buf);
             return -EIO;
         }