From: Saurav Kashyap <saurav.kashyap@qlogic.com>
Date: Tue, 16 Aug 2011 18:29:25 +0000 (-0700)
Subject: [SCSI] qla2xxx: Acquire hardware lock while manipulating dsd list.
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7594206493880007fd68a18d6e9f380a1afe20d4;p=linux-beck.git

[SCSI] qla2xxx: Acquire hardware lock while manipulating dsd list.

The dsd list shouldn't be manipulated without taking the per host hardware
lock to prevent multiple callers from trampling upon one another.

Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index f57c292845a5..2caab83c4c9f 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -913,7 +913,10 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 		    "Abort command mbx success.\n");
 		wait = 1;
 	}
+
+	spin_lock_irqsave(&ha->hardware_lock, flags);
 	qla2x00_sp_compl(ha, sp);
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
 	/* Wait for the command to be returned. */
 	if (wait) {