devfs_allocv(): style

(cherry picked from commit 6d79564)

Author: kostikbel

sys/fs/devfs/devfs_vnops.c

@@ -557,8 +557,7 @@ devfs_allocv(struct devfs_dirent *de, struct mount *mp, int lockmode,
 		if (devfs_allocv_drop_refs(0, dmp, de)) {
 			vput(vp);
 			return (ENOENT);
-		}
-		else if (VN_IS_DOOMED(vp)) {
+		} else if (VN_IS_DOOMED(vp)) {
 			mtx_lock(&devfs_de_interlock);
 			if (de->de_vnode == vp) {
 				de->de_vnode = NULL;