Index: linux/drivers/scsi/NCR5380.c
===================================================================
--- linux.orig/drivers/scsi/NCR5380.c	2015-12-06 12:29:29.000000000 +1100
+++ linux/drivers/scsi/NCR5380.c	2015-12-06 12:29:30.000000000 +1100
@@ -777,8 +777,7 @@ static void lprint_opcode(int opcode, st
 
 static int NCR5380_init(struct Scsi_Host *instance, int flags)
 {
-	int i, pass;
-	unsigned long timeout;
+	int i;
 	struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
 
 	if(in_interrupt())
@@ -831,18 +830,26 @@ static int NCR5380_init(struct Scsi_Host
 		NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE);
 	}
 #endif
+	return 0;
+}
 
-	/* 
-	 * Detect and correct bus wedge problems.
-	 *
-	 * If the system crashed, it may have crashed in a state 
-	 * where a SCSI command was still executing, and the 
-	 * SCSI bus is not in a BUS FREE STATE.
-	 *
-	 * If this is the case, we'll try to abort the currently
-	 * established nexus which we know nothing about, and that
-	 * failing, do a hard reset of the SCSI bus 
-	 */
+/**
+ * NCR5380_maybe_reset_bus - Detect and correct bus wedge problems.
+ * @instance: adapter to check
+ *
+ * If the system crashed, it may have crashed with a connected target and
+ * the SCSI bus busy. Check for BUS FREE phase. If not, try to abort the
+ * currently established nexus, which we know nothing about. Failing that
+ * do a bus reset.
+ *
+ * Note that a bus reset will cause the chip to assert IRQ.
+ *
+ * Returns 0 if successful, otherwise -ENXIO.
+ */
+
+static int NCR5380_maybe_reset_bus(struct Scsi_Host *instance)
+{
+	int pass;
 
 	for (pass = 1; (NCR5380_read(STATUS_REG) & SR_BSY) && pass <= 6; ++pass) {
 		switch (pass) {
@@ -850,7 +857,6 @@ static int NCR5380_init(struct Scsi_Host
 		case 3:
 		case 5:
 			printk(KERN_INFO "scsi%d: SCSI bus busy, waiting up to five seconds\n", instance->host_no);
-			timeout = jiffies + 5 * HZ;
 			NCR5380_poll_politely(instance, STATUS_REG, SR_BSY, 0, 5*HZ);
 			break;
 		case 2:
Index: linux/drivers/scsi/NCR5380.h
===================================================================
--- linux.orig/drivers/scsi/NCR5380.h	2015-12-06 12:29:23.000000000 +1100
+++ linux/drivers/scsi/NCR5380.h	2015-12-06 12:29:30.000000000 +1100
@@ -318,6 +318,7 @@ static void NCR5380_print(struct Scsi_Ho
 static int NCR5380_probe_irq(struct Scsi_Host *instance, int possible);
 #endif
 static int NCR5380_init(struct Scsi_Host *instance, int flags);
+static int NCR5380_maybe_reset_bus(struct Scsi_Host *);
 static void NCR5380_exit(struct Scsi_Host *instance);
 static void NCR5380_information_transfer(struct Scsi_Host *instance);
 #ifndef DONT_USE_INTR
Index: linux/drivers/scsi/arm/cumana_1.c
===================================================================
--- linux.orig/drivers/scsi/arm/cumana_1.c	2015-12-06 12:29:25.000000000 +1100
+++ linux/drivers/scsi/arm/cumana_1.c	2015-12-06 12:29:30.000000000 +1100
@@ -240,6 +240,8 @@ static int cumanascsi1_probe(struct expa
 
 	NCR5380_init(host, 0);
 
+	NCR5380_maybe_reset_bus(host);
+
         priv(host)->ctrl = 0;
         writeb(0, priv(host)->base + CTRL);
 
Index: linux/drivers/scsi/arm/oak.c
===================================================================
--- linux.orig/drivers/scsi/arm/oak.c	2015-12-06 12:29:25.000000000 +1100
+++ linux/drivers/scsi/arm/oak.c	2015-12-06 12:29:30.000000000 +1100
@@ -145,6 +145,8 @@ static int oakscsi_probe(struct expansio
 
 	NCR5380_init(host, 0);
 
+	NCR5380_maybe_reset_bus(host);
+
 	ret = scsi_add_host(host, &ec->dev);
 	if (ret)
 		goto out_unmap;
Index: linux/drivers/scsi/dmx3191d.c
===================================================================
--- linux.orig/drivers/scsi/dmx3191d.c	2015-12-06 12:29:25.000000000 +1100
+++ linux/drivers/scsi/dmx3191d.c	2015-12-06 12:29:30.000000000 +1100
@@ -97,6 +97,8 @@ static int dmx3191d_probe_one(struct pci
 
 	NCR5380_init(shost, FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E);
 
+	NCR5380_maybe_reset_bus(shost);
+
 	pci_set_drvdata(pdev, shost);
 
 	error = scsi_add_host(shost, &pdev->dev);
Index: linux/drivers/scsi/dtc.c
===================================================================
--- linux.orig/drivers/scsi/dtc.c	2015-12-06 12:29:25.000000000 +1100
+++ linux/drivers/scsi/dtc.c	2015-12-06 12:29:30.000000000 +1100
@@ -237,6 +237,8 @@ found:
 
 		NCR5380_init(instance, 0);
 
+		NCR5380_maybe_reset_bus(instance);
+
 		NCR5380_write(DTC_CONTROL_REG, CSR_5380_INTR);	/* Enable int's */
 		if (overrides[current_override].irq != IRQ_AUTO)
 			instance->irq = overrides[current_override].irq;
Index: linux/drivers/scsi/g_NCR5380.c
===================================================================
--- linux.orig/drivers/scsi/g_NCR5380.c	2015-12-06 12:29:29.000000000 +1100
+++ linux/drivers/scsi/g_NCR5380.c	2015-12-06 12:29:30.000000000 +1100
@@ -422,6 +422,8 @@ static int __init generic_NCR5380_detect
 
 		NCR5380_init(instance, flags);
 
+		NCR5380_maybe_reset_bus(instance);
+
 		if (overrides[current_override].irq != IRQ_AUTO)
 			instance->irq = overrides[current_override].irq;
 		else
Index: linux/drivers/scsi/pas16.c
===================================================================
--- linux.orig/drivers/scsi/pas16.c	2015-12-06 12:29:25.000000000 +1100
+++ linux/drivers/scsi/pas16.c	2015-12-06 12:29:30.000000000 +1100
@@ -384,6 +384,8 @@ static int __init pas16_detect(struct sc
 
 	NCR5380_init(instance, 0);
 
+	NCR5380_maybe_reset_bus(instance);
+
 	if (overrides[current_override].irq != IRQ_AUTO)
 	    instance->irq = overrides[current_override].irq;
 	else 
Index: linux/drivers/scsi/t128.c
===================================================================
--- linux.orig/drivers/scsi/t128.c	2015-12-06 12:29:25.000000000 +1100
+++ linux/drivers/scsi/t128.c	2015-12-06 12:29:30.000000000 +1100
@@ -215,6 +215,8 @@ found:
 
 	NCR5380_init(instance, 0);
 
+	NCR5380_maybe_reset_bus(instance);
+
 	if (overrides[current_override].irq != IRQ_AUTO)
 	    instance->irq = overrides[current_override].irq;
 	else 
