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sa_unblockyield: 

don't assert that syscall arguments are sane.
return an appropriate error instead.
This commit is contained in:
yamt 2003-10-24 16:11:21 +00:00
parent 54cad697fd
commit a526db13df
1 changed files with 10 additions and 5 deletions
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15
sys/kern/kern_sa.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_sa.c,v 1.27 2003/10/20 07:15:26 wiz Exp $ */
/* $NetBSD: kern_sa.c,v 1.28 2003/10/24 16:11:21 yamt Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_sa.c,v 1.27 2003/10/20 07:15:26 wiz Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_sa.c,v 1.28 2003/10/24 16:11:21 yamt Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -493,12 +493,17 @@ sys_sa_unblockyield(struct lwp *l, void *v, register_t *retval)
SCHED_LOCK(s);
LIST_FOREACH(l2, &p->p_lwps, l_sibling) {
if (l2->l_lid == SCARG(uap, sa_id)) {
KDASSERT(l2->l_upcallstack ==
sa->sa_stacks[sa->sa_nstacks].ss_sp);
break;
}
}
KDASSERT(l2 != NULL);
if (l2 == NULL) {
SCHED_UNLOCK(s);
return (ESRCH);
}
if (l2->l_upcallstack != sa->sa_stacks[sa->sa_nstacks].ss_sp) {
SCHED_UNLOCK(s);
return (EINVAL);
}
/*
* upcall not interrupted: (*up_preempted == NULL)