Btrfs: Use kzalloc on the fs_devices allocation

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 3fbf0834e884..333e5269577a 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -120,7 +120,7 @@ static int device_list_add(const char *path,
 
         fs_devices = find_fsid(disk_super->fsid);
         if (!fs_devices) {
-                fs_devices = kmalloc(sizeof(*fs_devices), GFP_NOFS);
+                fs_devices = kzalloc(sizeof(*fs_devices), GFP_NOFS);
                 if (!fs_devices)
                         return -ENOMEM;
                 INIT_LIST_HEAD(&fs_devices->devices);
@@ -129,7 +129,6 @@ static int device_list_add(const char *path,
                 memcpy(fs_devices->fsid, disk_super->fsid, BTRFS_FSID_SIZE);
                 fs_devices->latest_devid = devid;
                 fs_devices->latest_trans = found_transid;
-                fs_devices->num_devices = 0;
                 device = NULL;
         } else {
                 device = __find_device(&fs_devices->devices, devid,