Drain watchdog callouts before detaching. This prevents a panic while

unloading the kernel module. Submitted by: Tom Cough
2010-08-30 21:33:33 +00:00 · 2010-08-30 21:33:33 +00:00 · e4151ac77b
commit e4151ac77b
parent 23ba157d30
1 changed files with 4 additions and 0 deletions
--- a/sys/dev/twa/tw_osl_freebsd.c
+++ b/sys/dev/twa/tw_osl_freebsd.c
@ -903,6 +903,10 @@ twa_shutdown(device_t dev)
 	/* Disconnect interrupts. */
 	error = twa_teardown_intr(sc);

+	/* Stop watchdog task. */
+	callout_drain(&(sc->watchdog_callout[0]));
+	callout_drain(&(sc->watchdog_callout[1]));
+
 	/* Disconnect from the controller. */
 	if ((error = tw_cl_shutdown_ctlr(&(sc->ctlr_handle), 0))) {
 		tw_osli_printf(sc, "error = %d",