ipmi: Reset the KCS timeout when starting error recovery

The OBF timer in KCS was not reset in one situation when error recovery
was started, resulting in an immediate timeout.
Reported-by: Bodo Stroesser <bstroesser@ts.fujitsu.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/char/ipmi/ipmi_kcs_sm.c

@@ -251,6 +251,7 @@ static inline int check_obf(struct si_sm_data *kcs, unsigned char status,
 	if (!GET_STATUS_OBF(status)) {
 		kcs->obf_timeout -= time;
 		if (kcs->obf_timeout < 0) {
+			kcs->obf_timeout = OBF_RETRY_TIMEOUT;
 			start_error_recovery(kcs, "OBF not ready in time");
 			return 1;
 		}