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

Release buf on error path too.

Bug was introduced in b35ebdf076 "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>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2018-04-27 17:20:02 +03:00 committed by Eric Blake
parent 89aa0d8763
commit 16a2227893

View File

@ -600,6 +600,7 @@ static int dirty_bitmap_load_bits(QEMUFile *f, DirtyBitmapLoadState *s)
ret = qemu_get_buffer(f, buf, buf_size); ret = qemu_get_buffer(f, buf, buf_size);
if (ret != buf_size) { if (ret != buf_size) {
error_report("Failed to read bitmap bits"); error_report("Failed to read bitmap bits");
g_free(buf);
return -EIO; return -EIO;
} }