ncr5380: Fix !REQ timeout in do_abort()
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@telegraphics.com.au>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index 97100a1..baa8785 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -1271,7 +1271,7 @@
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 @@
*/
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 @@
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 @@
* 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;