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authorSarang Radke <sarang.radke@qlogic.com>2012-01-11 11:44:18 +0100
committerJames Bottomley <JBottomley@Parallels.com>2012-01-16 09:33:24 +0100
commit787649993230eb1d6fc326f13be285a840092538 (patch)
treee3d6b283cac4d6f4fc99e067fdef4e13523e6785 /drivers/scsi/qla4xxx/ql4_nx.c
parent[SCSI] qla4xxx: Added error logging for firmware abort (diff)
downloadlinux-787649993230eb1d6fc326f13be285a840092538.tar.xz
linux-787649993230eb1d6fc326f13be285a840092538.zip
[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>
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_nx.c')
-rw-r--r--drivers/scsi/qla4xxx/ql4_nx.c5
1 files changed, 5 insertions, 0 deletions
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))