[PATCH] memset argument order misuses

A simple 'grep memset.*\<0);' shows argument order errors in several
uses of memset.

This grep was inspired by Al Viro's recent patch, megaraid_mbox fix,
which fixed this problem in the megaraid driver.

drivers/s390/block/dasd_genhd.c

@@ -149,8 +149,8 @@ dasd_destroy_partitions(struct dasd_device * device)
 	 * Can't call delete_partitions directly. Use ioctl.
 	 * The ioctl also does locking and invalidation.
 	 */
-	memset(&bpart, sizeof(struct blkpg_partition), 0);
-	memset(&barg, sizeof(struct blkpg_ioctl_arg), 0);
+	memset(&bpart, 0, sizeof(struct blkpg_partition));
+	memset(&barg, 0, sizeof(struct blkpg_ioctl_arg));
 	barg.data = &bpart;
 	barg.op = BLKPG_DEL_PARTITION;
 	for (bpart.pno = device->gdp->minors - 1; bpart.pno > 0; bpart.pno--)

drivers/s390/cio/cmf.c

@@ -526,7 +526,7 @@ readall_cmb (struct ccw_device *cdev, struct cmbdata *data)
 	time = get_clock() - cdev->private->cmb_start_time;
 	spin_unlock_irqrestore(cdev->ccwlock, flags);
 
-	memset(data, sizeof(struct cmbdata), 0);
+	memset(data, 0, sizeof(struct cmbdata));
 
 	/* we only know values before device_busy_time */
 	data->size = offsetof(struct cmbdata, device_busy_time);
@@ -736,7 +736,7 @@ readall_cmbe (struct ccw_device *cdev, struct cmbdata *data)
 	time = get_clock() - cdev->private->cmb_start_time;
 	spin_unlock_irqrestore(cdev->ccwlock, flags);
 
-	memset (data, sizeof(struct cmbdata), 0);
+	memset (data, 0, sizeof(struct cmbdata));
 
 	/* we only know values before device_busy_time */
 	data->size = offsetof(struct cmbdata, device_busy_time);

drivers/s390/cio/css.c

@@ -527,7 +527,7 @@ css_enqueue_subchannel_slow(unsigned long schid)
 	new_slow_sch = kmalloc(sizeof(struct slow_subchannel), GFP_ATOMIC);
 	if (!new_slow_sch)
 		return -ENOMEM;
-	memset(new_slow_sch, sizeof(struct slow_subchannel), 0);
+	memset(new_slow_sch, 0, sizeof(struct slow_subchannel));
 	new_slow_sch->schid = schid;
 	spin_lock_irqsave(&slow_subchannel_lock, flags);
 	list_add_tail(&new_slow_sch->slow_list, &slow_subchannels_head);