Manage.c: fix make everything compilation error

This patch fixes the following make everything compilation error:
Manage.c: In function ‘Manage_add’:
Manage.c:538: error: ‘dev_st’ may be used uninitialized in this function
make: *** [mdadm.Os] Error 1

Signed-off-by: Lukasz Dorau <lukasz.dorau@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/Manage.c b/Manage.c
index d5fc9740..f83af652 100644
--- a/Manage.c
+++ b/Manage.c
@@ -535,7 +535,7 @@ int Manage_add(int fd, int tfd, struct mddev_dev *dv,
 	       char *update, unsigned long rdev, unsigned long long array_size)
 {
 	unsigned long long ldsize;
-	struct supertype *dev_st;
+	struct supertype *dev_st = NULL;
 	int j;
 	mdu_disk_info_t disc;