linux-kernel - [PATCH 4.9 43/77] scsi: megaraid_sas: set minimum value of resetwaittime to be 1 secs

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Date:   Sun, 24 Sep 2017 22:32:28 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Kashyap Desai <kashyap.desai@...adcom.com>,
        Shivasharan S <shivasharan.srikanteshwara@...adcom.com>,
        Hannes Reinecke <hare@...e.com>,
        Tomas Henzl <thenzl@...hat.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
Subject: [PATCH 4.9 43/77] scsi: megaraid_sas: set minimum value of resetwaittime to be 1 secs

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

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

From: Shivasharan S <shivasharan.srikanteshwara@...adcom.com>

commit e636a7a430f41efb0ff2727960ce61ef9f8f6769 upstream.

Setting resetwaittime to 0 during a FW fault will result in driver not
calling the OCR.

Signed-off-by: Kashyap Desai <kashyap.desai@...adcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@...adcom.com>
Reviewed-by: Hannes Reinecke <hare@...e.com>
Reviewed-by: Tomas Henzl <thenzl@...hat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/megaraid/megaraid_sas_base.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -5290,7 +5290,8 @@ static int megasas_init_fw(struct megasa
 		instance->throttlequeuedepth =
 				MEGASAS_THROTTLE_QUEUE_DEPTH;
 
-	if (resetwaittime > MEGASAS_RESET_WAIT_TIME)
+	if ((resetwaittime < 1) ||
+	    (resetwaittime > MEGASAS_RESET_WAIT_TIME))
 		resetwaittime = MEGASAS_RESET_WAIT_TIME;
 
 	if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT))