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microblaze: rt_sigreturn is too trigger-happy about sigaltstack errors

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-11-20 10:41:11 -05:00
parent afd3f96dc3
commit 02232f8d2b
1 changed files with 1 additions and 1 deletions
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2
arch/microblaze/kernel/signal.c
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@ -111,7 +111,7 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs)
/* It is more difficult to avoid calling this function than to
call it and ignore errors. */
if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->r1))
if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->r1) == -EFAULT)
goto badframe;
return rval;