Alpha: Fix a missing comma in sys_osf_statfs()

Fix a comma that got accidentally deleted from sys_osf_statfs() leading to the
following warning:

  arch/alpha/kernel/osf_sys.c: In function 'SYSC_osf_statfs':
  arch/alpha/kernel/osf_sys.c:255: error: syntax error before 'buffer'
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/alpha/kernel/osf_sys.c

@@ -252,7 +252,7 @@ SYSCALL_DEFINE3(osf_statfs, const char __user *, pathname,
 
 	retval = user_path(pathname, &path);
 	if (!retval) {
-		retval = do_osf_statfs(&path buffer, bufsiz);
+		retval = do_osf_statfs(&path, buffer, bufsiz);
 		path_put(&path);
 	}
 	return retval;