[S390] dcssblk: revert devt conversion

git commit f331c0296f2a9fee0d396a70598b954062603015 changed users of
->first_minor to devt. This broke device handling in dcssblk, so that
no additional devices could be added after the first one.

This patch reverts the devt conversion to the previous ->first_minor
handling.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index a4c7ffcd998..b21caf177e3 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -127,7 +127,7 @@ dcssblk_assign_free_minor(struct dcssblk_dev_info *dev_info)
                 found = 0;
                 // test if minor available
                 list_for_each_entry(entry, &dcssblk_devices, lh)
-                        if (minor == MINOR(disk_devt(entry->gd)))
+                        if (minor == entry->gd->first_minor)
                                 found++;
                 if (!found) break; // got unused minor
         }
@@ -625,7 +625,7 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char
         if (rc)
                 goto release_gd;
         sprintf(dev_info->gd->disk_name, "dcssblk%d",
-                MINOR(disk_devt(dev_info->gd)));
+                dev_info->gd->first_minor);
         list_add_tail(&dev_info->lh, &dcssblk_devices);
 
         if (!try_module_get(THIS_MODULE)) {