linux-kernel - [PATCH 3.11 180/182] ipmi: Reset the KCS timeout when starting error recovery

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Message-Id: <1398329507-5911-181-git-send-email-luis.henriques@canonical.com>
Date:	Thu, 24 Apr 2014 09:51:45 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Corey Minyard <cminyard@...sta.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	minyard@....org, Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.11 180/182] ipmi: Reset the KCS timeout when starting error recovery

3.11.10.9 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Corey Minyard <cminyard@...sta.com>

commit eb6d78ec213e6938559b801421d64714dafcf4b2 upstream.

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@...fujitsu.com>
Signed-off-by: Corey Minyard <cminyard@...sta.com>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: minyard@....org
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/char/ipmi/ipmi_kcs_sm.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_kcs_sm.c b/drivers/char/ipmi/ipmi_kcs_sm.c
index e53fc24..e1ddcf9 100644
--- a/drivers/char/ipmi/ipmi_kcs_sm.c
+++ b/drivers/char/ipmi/ipmi_kcs_sm.c
@@ -251,8 +251,9 @@ 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) {
-		    start_error_recovery(kcs, "OBF not ready in time");
-		    return 1;
+			kcs->obf_timeout = OBF_RETRY_TIMEOUT;
+			start_error_recovery(kcs, "OBF not ready in time");
+			return 1;
 		}
 		return 0;
 	}
-- 
1.9.1

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