LXC: fix memory leak in lxcContainerMountFSBlockHelper

we alloc the memory for format in lxcContainerMountDetectFilesystem
but without free it in lxcContainerMountFSBlockHelper.

this patch just call VIR_FREE to free it.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
(cherry picked from commit 73e2d646fb027a8f943bea9cc7ff28aa0362781d)

diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c
index 070e07129059377b17feb093c7c11e9f3b33aca1..dac85e0ace3204a6ba78be01ca3adecb210e3d3a 100644 (file)
--- a/src/lxc/lxc_container.c
+++ b/src/lxc/lxc_container.c
@@ -971,6 +971,7 @@ static int lxcContainerMountFSBlockHelper(virDomainFSDefPtr fs,
     }
 
 cleanup:
+    VIR_FREE(format);
     return ret;
 }