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score: do_sigaltstack() expects a userland pointer... 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-11-20 10:36:17 -05:00
parent 9dc87c7b5b
commit afd3f96dc3
1 changed files with 2 additions and 5 deletions
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7
arch/score/kernel/signal.c
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@ -148,7 +148,6 @@ score_rt_sigreturn(struct pt_regs *regs)
{
struct rt_sigframe __user *frame;
sigset_t set;
stack_t st;
int sig;
/* Always make any pending restarted system calls return -EINTR */
@ -168,12 +167,10 @@ score_rt_sigreturn(struct pt_regs *regs)
else if (sig)
force_sig(sig, current);
if (__copy_from_user(&st, &frame->rs_uc.uc_stack, sizeof(st)))
goto badframe;
/* It is more difficult to avoid calling this function than to
call it and ignore errors. */
do_sigaltstack((stack_t __user *)&st, NULL, regs->regs[0]);
if (do_sigaltstack(&frame->rs_uc.uc_stack, NULL, regs->regs[0]) == -EFAULT)
goto badframe;
regs->is_syscall = 0;
__asm__ __volatile__(