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m68knommu: fix syscall restart handling

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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>
This commit is contained in:
Greg Ungerer 2007-10-23 14:37:54 +10:00 committed by Linus Torvalds
parent ada8d218cc
commit dbf18c8f62
1 changed files with 1 additions and 9 deletions
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10
arch/m68knommu/kernel/signal.c
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@ -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;
}