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Check SIGALRM handler setup success or failure

This commit is contained in:
reinoud 2011-09-05 18:52:14 +00:00
parent f4a0812d54
commit 228af51207
1 changed files with 7 additions and 5 deletions
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12
sys/arch/usermode/dev/clock.c
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@ -1,4 +1,4 @@
/* $NetBSD: clock.c,v 1.13 2011/09/05 18:17:08 jmcneill Exp $ */
/* $NetBSD: clock.c,v 1.14 2011/09/05 18:52:14 reinoud Exp $ */
/*-
* Copyright (c) 2007 Jared D. McNeill <jmcneill@invisible.ca>
@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: clock.c,v 1.13 2011/09/05 18:17:08 jmcneill Exp $");
__KERNEL_RCSID(0, "$NetBSD: clock.c,v 1.14 2011/09/05 18:52:14 reinoud Exp $");
#include <sys/param.h>
#include <sys/proc.h>
@ -45,7 +45,7 @@ static int clock_match(device_t, cfdata_t, void *);
static void clock_attach(device_t, device_t, void *);
static void clock_softint(void *);
static void clock_signal(int);
static void clock_signal(int sig);
static unsigned int clock_getcounter(struct timecounter *);
static int clock_todr_gettime(struct todr_chip_handle *, struct timeval *);
@ -86,9 +86,9 @@ clock_match(device_t parent, cfdata_t match, void *opaque)
static void
clock_attach(device_t parent, device_t self, void *opaque)
{
static struct sigaction sa;
clock_softc_t *sc = device_private(self);
struct thunk_itimerval itimer;
struct sigaction sa;
stack_t ss;
long tcres;
@ -116,7 +116,9 @@ clock_attach(device_t parent, device_t self, void *opaque)
sigfillset(&sa.sa_mask);
sa.sa_handler = clock_signal;
sa.sa_flags = SA_ONSTACK;
thunk_sigaction(SIGALRM, &sa, NULL);
if (thunk_sigaction(SIGALRM, &sa, NULL) == -1)
panic("couldn't register SIGALRM handler : %d",
thunk_geterrno());
itimer.it_interval.tv_sec = 0;
itimer.it_interval.tv_usec = 10000;