From: Greg Ungerer <gerg@snapgear.com>
Date: Tue, 23 Oct 2007 04:37:54 +0000 (+1000)
Subject: m68knommu: fix syscall restart handling
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=dbf18c8f62cd87473d6db8c16afe4207bc370d3e;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

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@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/arch/m68knommu/kernel/signal.c b/arch/m68knommu/kernel/signal.c
index 437f8c6c14a..70371378db8 100644
--- a/arch/m68knommu/kernel/signal.c
+++ b/arch/m68knommu/kernel/signal.c
@@ -781,15 +781,7 @@ asmlinkage int do_signal(sigset_t *oldset, struct pt_regs *regs)
 	/* 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;
 }