[PATCH] s390: introduce for_each_subchannel

[powerpc.git] / drivers / s390 / block / dasd_devmap.c

diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c
index d948566..caee16a 100644 (file)
--- a/drivers/s390/block/dasd_devmap.c
+++ b/drivers/s390/block/dasd_devmap.c
@@ -11,7 +11,7 @@
  * functions may not be called from interrupt context. In particular
  * dasd_get_device is a no-no from interrupt context.
  *
- * $Revision: 1.40 $
+ * $Revision: 1.43 $
  */
 
 #include <linux/config.h>
@@ -387,8 +387,7 @@ dasd_add_busid(char *bus_id, int features)
                new = 0;
        }
        spin_unlock(&dasd_devmap_lock);
-       if (new)
-               kfree(new);
+       kfree(new);
        return devmap;
 }
 
@@ -513,6 +512,7 @@ dasd_create_device(struct ccw_device *cdev)
        if (!devmap->device) {
                devmap->device = device;
                device->devindex = devmap->devindex;
+               device->features = devmap->features;
                get_device(&cdev->dev);
                device->cdev = cdev;
                rc = 0;
@@ -643,6 +643,8 @@ dasd_ro_store(struct device *dev, struct device_attribute *attr, const char *buf
                devmap->features |= DASD_FEATURE_READONLY;
        else
                devmap->features &= ~DASD_FEATURE_READONLY;
+       if (devmap->device)
+               devmap->device->features = devmap->features;
        if (devmap->device && devmap->device->gdp)
                set_disk_ro(devmap->device->gdp, ro_flag);
        spin_unlock(&dasd_devmap_lock);
@@ -758,7 +760,8 @@ dasd_set_feature(struct ccw_device *cdev, int feature, int flag)
                devmap->features |= feature;
        else
                devmap->features &= ~feature;
-
+       if (devmap->device)
+               devmap->device->features = devmap->features;
        spin_unlock(&dasd_devmap_lock);
        return 0;
 }