NCR5380_poll_politely() never returns -1. That means do_abort() can fail
to handle a timeout after waiting for the target to negate REQ. Fix this
and cleanup other NCR5380_poll_politely() call sites.
Signed-off-by: Finn Thain <fthain@xxxxxxxxxxxxxxxxxxx>
Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>
Tested-by: Ondrej Zary <linux@xxxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/NCR5380.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
Index: linux/drivers/scsi/NCR5380.c
===================================================================
--- linux.orig/drivers/scsi/NCR5380.c 2016-01-03 16:03:40.000000000 +1100
+++ linux/drivers/scsi/NCR5380.c 2016-01-03 16:03:41.000000000 +1100
@@ -1271,7 +1271,7 @@ static int NCR5380_select(struct Scsi_Ho
err = NCR5380_poll_politely(instance, STATUS_REG, SR_REQ, SR_REQ, HZ);
spin_lock_irq(instance->host_lock);
- if(err) {
+ if (err < 0) {
printk(KERN_ERR "scsi%d: timeout at NCR5380.c:%d\n", instance->host_no, __LINE__);
NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
return -1;
@@ -1490,8 +1490,7 @@ static int do_abort(struct Scsi_Host *in
*/
rc = NCR5380_poll_politely(instance, STATUS_REG, SR_REQ, SR_REQ, 60 * HZ);
-
- if(rc < 0)
+ if (rc < 0)
return -1;
tmp = (unsigned char)rc;
@@ -1502,7 +1501,7 @@ static int do_abort(struct Scsi_Host *in
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN | ICR_ASSERT_ACK);
rc = NCR5380_poll_politely(instance, STATUS_REG, SR_REQ, 0, 3 * HZ);
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN);
- if(rc == -1)
+ if (rc < 0)
return -1;
}
tmp = ABORT;
@@ -2199,7 +2198,8 @@ static void NCR5380_reselect(struct Scsi
* FIXME: timeout needed and fail to work queeu
*/
- if(NCR5380_poll_politely(instance, STATUS_REG, SR_REQ, SR_REQ, 2*HZ))
+ if (NCR5380_poll_politely(instance,
+ STATUS_REG, SR_REQ, SR_REQ, 2 * HZ) < 0)
abort = 1;
len = 1;
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
