linux-kernel - [M68KNOMMU]: fix syscall restart handling

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Message-Id: <200710190439.l9J4d1j0004977@goober>
Date:	Fri, 19 Oct 2007 14:39:01 +1000
From:	Greg Ungerer <gerg@...pgear.com>
To:	torvalds@...ux-foundation.org
Cc:	gerg@...inux.org, linux-kernel@...r.kernel.org
Subject: [M68KNOMMU]: fix syscall restart handling

Fix system call restart handling. We can call directly to the
restart handler, no need to back track through trap that isn't
even implemented on m68knommu.

Signed-off-by: Greg Ungerer <gerg@...inux.org>
---


diff -Naurp linux-2.6.23/arch/m68knommu/kernel/signal.c linux-2.6.23-uc0/arch/m68knommu/kernel/signal.c
--- linux-2.6.23/arch/m68knommu/kernel/signal.c	2007-10-19 10:30:55.000000000 +1000
+++ linux-2.6.23-uc0/arch/m68knommu/kernel/signal.c	2007-10-19 10:35:40.000000000 +1000
@@ -781,15 +781,7 @@ asmlinkage int do_signal(sigset_t *oldse
 	/* Did we come from a system call? */
 	if (regs->orig_d0 >= 0) {
 		/* Restart the system call - no handlers present */
-		if (regs->d0 == -ERESTARTNOHAND
-		    || regs->d0 == -ERESTARTSYS
-		    || regs->d0 == -ERESTARTNOINTR) {
-			regs->d0 = regs->orig_d0;
-			regs->pc -= 2;
-		} else if (regs->d0 == -ERESTART_RESTARTBLOCK) {
-			regs->d0 = __NR_restart_syscall;
-			regs->pc -= 2;
-		}
+		handle_restart(regs, NULL, 0);
 	}
 	return 0;
 }
-
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