Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (30 commits)
  [S390] wire up sys_perf_counter_open
  [S390] wire up sys_rt_tgsigqueueinfo
  [S390] ftrace: add system call tracer support
  [S390] ftrace: add function graph tracer support
  [S390] ftrace: add function trace mcount test support
  [S390] ftrace: add dynamic ftrace support
  [S390] kprobes: use probe_kernel_write
  [S390] maccess: arch specific probe_kernel_write() implementation
  [S390] maccess: add weak attribute to probe_kernel_write
  [S390] profile_tick called twice
  [S390] dasd: forward internal errors to dasd_sleep_on caller
  [S390] dasd: sync after async probe
  [S390] dasd: check_characteristics cleanup
  [S390] dasd: no High Performance FICON in 31-bit mode
  [S390] dcssblk: revert devt conversion
  [S390] qdio: fix access beyond ARRAY_SIZE of irq_ptr->{in,out}put_qs
  [S390] vmalloc: add vmalloc kernel parameter support
  [S390] uaccess: use might_fault() instead of might_sleep()
  [S390] 3270: lock dependency fixes
  [S390] 3270: do not register with tty_register_device
  ...

1 files changed, 14 insertions, 8 deletions

diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index 8912358daa2..597c6ffdb9f 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -122,20 +122,20 @@ dasd_fba_check_characteristics(struct dasd_device *device)
 	struct dasd_block *block;
 	struct dasd_fba_private *private;
 	struct ccw_device *cdev = device->cdev;
-	void *rdc_data;
 	int rc;
 
 	private = (struct dasd_fba_private *) device->private;
-	if (private == NULL) {
-		private = kzalloc(sizeof(struct dasd_fba_private),
-				  GFP_KERNEL | GFP_DMA);
-		if (private == NULL) {
+	if (!private) {
+		private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA);
+		if (!private) {
 			dev_warn(&device->cdev->dev,
 				 "Allocating memory for private DASD "
 				 "data failed\n");
 			return -ENOMEM;
 		}
 		device->private = (void *) private;
+	} else {
+		memset(private, 0, sizeof(*private));
 	}
 	block = dasd_alloc_block();
 	if (IS_ERR(block)) {
@@ -150,8 +150,8 @@ dasd_fba_check_characteristics(struct dasd_device *device)
 	block->base = device;
 
 	/* Read Device Characteristics */
-	rdc_data = (void *) &(private->rdc_data);
-	rc = dasd_generic_read_dev_chars(device, "FBA ", &rdc_data, 32);
+	rc = dasd_generic_read_dev_chars(device, "FBA ", &private->rdc_data,
+					 32);
 	if (rc) {
 		DBF_EVENT(DBF_WARNING, "Read device characteristics returned "
 			  "error %d for device: %s",
@@ -604,8 +604,14 @@ static struct dasd_discipline dasd_fba_discipline = {
 static int __init
 dasd_fba_init(void)
 {
+	int ret;
+
 	ASCEBC(dasd_fba_discipline.ebcname, 4);
-	return ccw_driver_register(&dasd_fba_driver);
+	ret = ccw_driver_register(&dasd_fba_driver);
+	if (!ret)
+		wait_for_device_probe();
+
+	return ret;
 }
 
 static void __exit