4 files changed, 43 insertions, 15 deletions

diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index b15c6a998b72..d5aa25ce5dbd 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -1276,23 +1276,31 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
 
 	data->vrm = vid_which_vrm();
 	superio_enter(sio_data->sioreg);
-	/* Set VID input sensibility if needed. In theory the BIOS should
-	   have set it, but in practice it's not always the case. */
-	en_vrm10 = superio_inb(sio_data->sioreg, SIO_REG_EN_VRM10);
-	if ((en_vrm10 & 0x08) && data->vrm != 100) {
-		dev_warn(dev, "Setting VID input voltage to TTL\n");
-		superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
-			     en_vrm10 & ~0x08);
-	} else if (!(en_vrm10 & 0x08) && data->vrm == 100) {
-		dev_warn(dev, "Setting VID input voltage to VRM10\n");
-		superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
-			     en_vrm10 | 0x08);
-	}
 	/* Read VID value */
 	superio_select(sio_data->sioreg, W83627EHF_LD_HWM);
-	if (superio_inb(sio_data->sioreg, SIO_REG_VID_CTRL) & 0x80)
+	if (superio_inb(sio_data->sioreg, SIO_REG_VID_CTRL) & 0x80) {
+		/* Set VID input sensibility if needed. In theory the BIOS
+		   should have set it, but in practice it's not always the
+		   case. We only do it for the W83627EHF/EHG because the
+		   W83627DHG is more complex in this respect. */
+		if (sio_data->kind == w83627ehf) {
+			en_vrm10 = superio_inb(sio_data->sioreg,
+					       SIO_REG_EN_VRM10);
+			if ((en_vrm10 & 0x08) && data->vrm == 90) {
+				dev_warn(dev, "Setting VID input voltage to "
+					 "TTL\n");
+				superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
+					     en_vrm10 & ~0x08);
+			} else if (!(en_vrm10 & 0x08) && data->vrm == 100) {
+				dev_warn(dev, "Setting VID input voltage to "
+					 "VRM10\n");
+				superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
+					     en_vrm10 | 0x08);
+			}
+		}
+
 		data->vid = superio_inb(sio_data->sioreg, SIO_REG_VID_DATA) & 0x3f;
-	else {
+	} else {
 		dev_info(dev, "VID pins in output mode, CPU VID not "
 			 "available\n");
 		data->vid = 0x3f;
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 8df8267ce316..60f77c4b3946 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1346,7 +1346,7 @@ int scsi_prep_return(struct request_queue *q, struct request *req, int ret)
 }
 EXPORT_SYMBOL(scsi_prep_return);
 
-static int scsi_prep_fn(struct request_queue *q, struct request *req)
+int scsi_prep_fn(struct request_queue *q, struct request *req)
 {
 	struct scsi_device *sdev = q->queuedata;
 	int ret = BLKPREP_KILL;
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index ee8efe849bf4..1de52b6ded40 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -73,6 +73,9 @@ extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
 extern void scsi_free_queue(struct request_queue *q);
 extern int scsi_init_queue(void);
 extern void scsi_exit_queue(void);
+struct request_queue;
+struct request;
+extern int scsi_prep_fn(struct request_queue *, struct request *);
 
 /* scsi_proc.c */
 #ifdef CONFIG_SCSI_PROC_FS
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index f374fdcb6815..00b386677392 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -373,12 +373,29 @@ static int scsi_bus_resume(struct device * dev)
 	return err;
 }
 
+static int scsi_bus_remove(struct device *dev)
+{
+	struct device_driver *drv = dev->driver;
+	struct scsi_device *sdev = to_scsi_device(dev);
+	int err = 0;
+
+	/* reset the prep_fn back to the default since the
+	 * driver may have altered it and it's being removed */
+	blk_queue_prep_rq(sdev->request_queue, scsi_prep_fn);
+
+	if (drv && drv->remove)
+		err = drv->remove(dev);
+
+	return 0;
+}
+
 struct bus_type scsi_bus_type = {
         .name		= "scsi",
         .match		= scsi_bus_match,
 	.uevent		= scsi_bus_uevent,
 	.suspend	= scsi_bus_suspend,
 	.resume		= scsi_bus_resume,
+	.remove		= scsi_bus_remove,
 };
 
 int scsi_sysfs_register(void)