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sparc: switch to use of generic old sigaction

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note that due to historical accident we do *not* directly take
generic versions - need to check and invert the sign of signal
number first.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2012-12-25 19:18:40 -05:00
parent bdc40abf07
commit a274bd498c
6 changed files with 13 additions and 69 deletions
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37
arch/sparc/kernel/sys_sparc_32.c
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@@ -160,41 +160,12 @@ sparc_breakpoint (struct pt_regs *regs)
#endif
}
asmlinkage int
sparc_sigaction (int sig, const struct old_sigaction __user *act,
struct old_sigaction __user *oact)
SYSCALL_DEFINE3(sparc_sigaction, int, sig,
struct old_sigaction __user *,act,
struct old_sigaction __user *,oact)
{
struct k_sigaction new_ka, old_ka;
int ret;
WARN_ON_ONCE(sig >= 0);
sig = -sig;
if (act) {
unsigned long mask;
if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
__get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
__get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
__get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
__get_user(mask, &act->sa_mask))
return -EFAULT;
siginitset(&new_ka.sa.sa_mask, mask);
new_ka.ka_restorer = NULL;
}
ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
if (!ret && oact) {
if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
__put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
__put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
__put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
return -EFAULT;
}
return ret;
return sys_sigaction(-sig, act, oact);
}
SYSCALL_DEFINE5(rt_sigaction, int, sig,