When called more than twice, the nios2_time_init() function return an
uninitialized value, as detected by gcc -Wmaybe-uninitialized
  arch/nios2/kernel/time.c: warning: 'ret' may be used uninitialized in this function
This makes it return '0' here, matching the comment above the function.
Acked-by: Ley Foon Tan <lftan@altera.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
                ret = nios2_clocksource_init(timer);
                break;
        default:
+               ret = 0;
                break;
        }