[PATCH 05/36] scsi: BusLogic: Introduce a local variable

[Bart Van Assche <bvanassche@acm.org>]

Introduce a new local variable to prepare for thread-safety analysis. No
functionality has been changed.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/BusLogic.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c
index 5304d2febd63..e3790ff24e56 100644
--- a/drivers/scsi/BusLogic.c
+++ b/drivers/scsi/BusLogic.c
@@ -2886,6 +2886,7 @@ static enum scsi_qc_status blogic_qcmd_lck(struct scsi_cmnd *command)
 	struct blogic_tgt_flags *tgt_flags =
 		&adapter->tgt_flags[command->device->id];
 	struct blogic_tgt_stats *tgt_stats = adapter->tgt_stats;
+	struct Scsi_Host *const shost = command->device->host;
 	unsigned char *cdb = command->cmnd;
 	int cdblen = command->cmd_len;
 	int tgt_id = command->device->id;
@@ -2915,9 +2916,9 @@ static enum scsi_qc_status blogic_qcmd_lck(struct scsi_cmnd *command)
 	 */
 	ccb = blogic_alloc_ccb(adapter);
 	if (ccb == NULL) {
-		spin_unlock_irq(adapter->scsi_host->host_lock);
+		spin_unlock_irq(shost->host_lock);
 		blogic_delay(1);
-		spin_lock_irq(adapter->scsi_host->host_lock);
+		spin_lock_irq(shost->host_lock);
 		ccb = blogic_alloc_ccb(adapter);
 		if (ccb == NULL) {
 			command->result = DID_ERROR << 16;
@@ -3062,10 +3063,10 @@ static enum scsi_qc_status blogic_qcmd_lck(struct scsi_cmnd *command)
 		   be initiated soon.
 		 */
 		if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START, ccb)) {
-			spin_unlock_irq(adapter->scsi_host->host_lock);
+			spin_unlock_irq(shost->host_lock);
 			blogic_warn("Unable to write Outgoing Mailbox - Pausing for 1 second\n", adapter);
 			blogic_delay(1);
-			spin_lock_irq(adapter->scsi_host->host_lock);
+			spin_lock_irq(shost->host_lock);
 			if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START,
 						ccb)) {
 				blogic_warn("Still unable to write Outgoing Mailbox - Host Adapter Dead?\n", adapter);