frv: handling of restart into restart_syscall is fscked

do_signal() should place the syscall number in gr7, not gr8 when
handling ERESTART_WOULDBLOCK.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

arch/frv/kernel/signal.c

@@ -547,7 +547,7 @@ static void do_signal(void)
 			break;
 
 		case -ERESTART_RESTARTBLOCK:
-			__frame->gr8 = __NR_restart_syscall;
+			__frame->gr7 = __NR_restart_syscall;
 			__frame->pc -= 4;
 			break;
 		}