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- Remove unnecessary useracc() calls from osf1_sigreturn().

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This commit is contained in:
Alan Cox 2003-04-29 06:33:03 +00:00
parent c7611918c1
commit 718e4d2f64
1 changed files with 3 additions and 12 deletions
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15
sys/alpha/osf1/osf1_signal.c
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@ -572,21 +572,12 @@ osf1_sigreturn(struct thread *td,
p = td->td_proc;
scp = uap->sigcntxp;
mtx_lock(&Giant);
if (useracc((caddr_t)scp, sizeof (*scp), VM_PROT_READ) == 0 ) {
uprintf("uac fails\n");
uprintf("scp: %p\n", scp);
}
/*
* Test and fetch the context structure.
* We grab it all at once for speed.
* Fetch the entire context structure at once for speed.
*/
if (useracc((caddr_t)scp, sizeof (*scp), VM_PROT_READ) == 0 ||
copyin((caddr_t)scp, (caddr_t)&ksc, sizeof ksc)) {
mtx_unlock(&Giant);
if (copyin((caddr_t)scp, (caddr_t)&ksc, sizeof ksc))
return (EFAULT);
}
mtx_unlock(&Giant);
/*
* Restore the user-supplied information.