mdadm: Fix building errors

In util.c, there is a building error:
'/md/metadata_version' directive writing 20 bytes into a
region of size between 0 and 255 [-Werror=format-overflow=]

In mapfile.c
It declares the fouth argument as 'int *' in map_update,
but in mdadm.h it's previously declared as an array 'int[4]'

Signed-off-by: Xiao Ni <xni@redhat.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/util.c b/util.c
index 58796947..cdf1da24 100644
--- a/util.c
+++ b/util.c
@@ -1543,7 +1543,7 @@ int open_container(int fd)
 	/* 'fd' is a block device.  Find out if it is in use
 	 * by a container, and return an open fd on that container.
 	 */
-	char path[256];
+	char path[288];
 	char *e;
 	DIR *dir;
 	struct dirent *de;