Author: attilio
Date: Mon Apr 25 14:12:58 2011
New Revision: 221016
URL: http://svn.freebsd.org/changeset/base/221016
Log:
Add missing bit in r221015.
Sponsored by: Sandvine Incorporated
Reviewed by: des
MFC after: 1 week
X-MFC: r221015
Modified:
head/sys/dev/ichwd/ichwd.c
Modified: head/sys/dev/ichwd/ichwd.c
==============================================================================
--- head/sys/dev/ichwd/ichwd.c Mon Apr 25 14:10:33 2011 (r221015)
+++ head/sys/dev/ichwd/ichwd.c Mon Apr 25 14:12:58 2011 (r221016)
@@ -217,6 +217,15 @@ ichwd_smi_enable(struct ichwd_softc *sc)
}
/*
+ * Check if the watchdog SMI triggering is enabled.
+ */
+static __inline int
+ichwd_smi_is_enabled(struct ichwd_softc *sc)
+{
+ return ((ichwd_read_smi_4(sc, SMI_EN) & SMI_TCO_EN) != 0);
+}
+
+/*
* Reset the watchdog status bits.
*/
static __inline void
@@ -534,6 +543,7 @@ ichwd_attach(device_t dev)
sc->ev_tag = EVENTHANDLER_REGISTER(watchdog_list, ichwd_event, sc, 0);
/* disable the SMI handler */
+ sc->smi_enabled = ichwd_smi_is_enabled(sc);
ichwd_smi_disable(sc);
return (0);
@@ -565,7 +575,8 @@ ichwd_detach(device_t dev)
ichwd_tmr_disable(sc);
/* enable the SMI handler */
- ichwd_smi_enable(sc);
+ if (sc->smi_enabled != 0)
+ ichwd_smi_enable(sc);
/* deregister event handler */
if (sc->ev_tag != NULL)
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