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Commit af445f45 authored by Al Viro's avatar Al Viro
Browse files

score: fix bogus restarts on sigreturn() 



we *really* don't want to have restart logics hit when we are returning from
sigreturn() - random replacement of %r4 with -4 just because a signal had
been noticed from timer interrupt that came when %r4 happened to contain
-514 is not nice at all.

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 6fdb6fbe

arch/score/kernel/signal.c

+1 −0
Original line number Original line Diff line number Diff line
@@ -174,6 +174,7 @@ score_rt_sigreturn(struct pt_regs *regs) 
	/* It is more difficult to avoid calling this function than to

	/* It is more difficult to avoid calling this function than to

	   call it and ignore errors.  */

	   call it and ignore errors.  */

	do_sigaltstack((stack_t __user *)&st, NULL, regs->regs[0]);

	do_sigaltstack((stack_t __user *)&st, NULL, regs->regs[0]);

	regs->is_syscall = 0;





	__asm__ __volatile__(

	__asm__ __volatile__(

		"mv\tr0, %0\n\t"

		"mv\tr0, %0\n\t"