[PATCH 02/10] NCR5380: Reduce goto statements in NCR5380_select()

From: Finn Thain
Date: Wed Sep 26 2018 - 21:27:20 EST


Replace a 'goto' statement with a simple 'return' where possible.
This improves readability. No functional change.

Tested-by: Michael Schmitz <schmitzmic@xxxxxxxxx>
Signed-off-by: Finn Thain <fthain@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/NCR5380.c | 21 ++++++++++++---------
1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index 80c20ab4fc53..c6d10780febe 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -984,7 +984,7 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance,
if (!hostdata->selecting) {
/* Command was aborted */
NCR5380_write(MODE_REG, MR_BASE);
- goto out;
+ return NULL;
}
if (err < 0) {
NCR5380_write(MODE_REG, MR_BASE);
@@ -1033,7 +1033,7 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance,
if (!hostdata->selecting) {
NCR5380_write(MODE_REG, MR_BASE);
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- goto out;
+ return NULL;
}

dsprintk(NDEBUG_ARBITRATION, instance, "won arbitration\n");
@@ -1116,13 +1116,16 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance,
spin_lock_irq(&hostdata->lock);
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
+
/* Can't touch cmd if it has been reclaimed by the scsi ML */
- if (hostdata->selecting) {
- cmd->result = DID_BAD_TARGET << 16;
- complete_cmd(instance, cmd);
- dsprintk(NDEBUG_SELECTION, instance, "target did not respond within 250ms\n");
- cmd = NULL;
- }
+ if (!hostdata->selecting)
+ return NULL;
+
+ cmd->result = DID_BAD_TARGET << 16;
+ complete_cmd(instance, cmd);
+ dsprintk(NDEBUG_SELECTION, instance,
+ "target did not respond within 250ms\n");
+ cmd = NULL;
goto out;
}

@@ -1155,7 +1158,7 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance,
}
if (!hostdata->selecting) {
do_abort(instance);
- goto out;
+ return NULL;
}

dsprintk(NDEBUG_SELECTION, instance, "target %d selected, going into MESSAGE OUT phase.\n",
--
2.16.4