From 787649993230eb1d6fc326f13be285a840092538 Mon Sep 17 00:00:00 2001
From: Sarang Radke <sarang.radke@qlogic.com>
Date: Wed, 11 Jan 2012 02:44:18 -0800
Subject: [SCSI] qla4xxx: Clear the RISC interrupt bit during FW init

This patch fix kernel panic during kdump.

Signed-off-by: Sarang Radke <sarang.radke@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/qla4xxx/ql4_nx.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'drivers/scsi/qla4xxx/ql4_nx.c')

diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index 8d6bc1b2ff17..78f1111158d7 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -1875,6 +1875,11 @@ exit:
 int qla4_8xxx_load_risc(struct scsi_qla_host *ha)
 {
 	int retval;
+
+	/* clear the interrupt */
+	writel(0, &ha->qla4_8xxx_reg->host_int);
+	readl(&ha->qla4_8xxx_reg->host_int);
+
 	retval = qla4_8xxx_device_state_handler(ha);
 
 	if (retval == QLA_SUCCESS && !test_bit(AF_INIT_DONE, &ha->flags))
-- 
cgit v1.2.3