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

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] fix s390x_newuname
  [S390] dasd: log sense for fatal errors
  [S390] cpu topology: fix locking
  [S390] cio: Fix refcount after moving devices.
  [S390] ftrace: fix kernel stack backchain walking
  [S390] ftrace: disable tracing on idle psw
  [S390] lockdep: fix compile bug
  [S390] kvm_s390: Fix oops in virtio device detection with "mem="
  [S390] sclp: emit error message if assign storage fails
  [S390] Fix range for add_active_range() in setup_memory()

4 files changed, 14 insertions, 2 deletions

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 4b76fca64a6f..363bd1303d21 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1746,6 +1746,11 @@ restart:
                         goto restart;
                 }
 
+                /* log sense for fatal error */
+                if (cqr->status == DASD_CQR_FAILED) {
+                        dasd_log_sense(cqr, &cqr->irb);
+                }
+
                 /* First of all call extended error reporting. */
                 if (dasd_eer_enabled(base) &&
                     cqr->status == DASD_CQR_FAILED) {
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index eb5f1b8bc57f..ec9c0bcf66ee 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -324,6 +324,9 @@ static int do_assign_storage(sclp_cmdw_t cmd, u16 rn)
         case 0x0120:
                 break;
         default:
+                pr_warning("assign storage failed (cmd=0x%08x, "
+                           "response=0x%04x, rn=0x%04x)\n", cmd,
+                           sccb->header.response_code, rn);
                 rc = -EIO;
                 break;
         }
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 4e78c82194b4..4e4008325e28 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -874,11 +874,15 @@ void ccw_device_move_to_orphanage(struct work_struct *work)
         replacing_cdev = get_disc_ccwdev_by_dev_id(&dev_id, cdev);
         if (replacing_cdev) {
                 sch_attach_disconnected_device(sch, replacing_cdev);
+                /* Release reference from get_disc_ccwdev_by_dev_id() */
+                put_device(&cdev->dev);
                 return;
         }
         replacing_cdev = get_orphaned_ccwdev_by_dev_id(css, &dev_id);
         if (replacing_cdev) {
                 sch_attach_orphaned_device(sch, replacing_cdev);
+                /* Release reference from get_orphaned_ccwdev_by_dev_id() */
+                put_device(&cdev->dev);
                 return;
         }
         sch_create_and_recog_new_device(sch);
diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c
index ff4a6931bb8e..3d442444c618 100644
--- a/drivers/s390/kvm/kvm_virtio.c
+++ b/drivers/s390/kvm/kvm_virtio.c
@@ -322,13 +322,13 @@ static int __init kvm_devices_init(void)
                 return rc;
         }
 
-        rc = vmem_add_mapping(PFN_PHYS(max_pfn), PAGE_SIZE);
+        rc = vmem_add_mapping(real_memory_size, PAGE_SIZE);
         if (rc) {
                 s390_root_dev_unregister(kvm_root);
                 return rc;
         }
 
-        kvm_devices = (void *) PFN_PHYS(max_pfn);
+        kvm_devices = (void *) real_memory_size;
 
         ctl_set_bit(0, 9);
         register_external_interrupt(0x2603, kvm_extint_handler);