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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>
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;
}