[SCSI] zfcp: Simplify get_adapter_by_busid

[safe/jmp/linux-2.6] / drivers / s390 / scsi / zfcp_ccw.c

diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index 0e1a42f..3a9bd54 100644 (file)
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -224,3 +224,20 @@ int __init zfcp_ccw_register(void)
 {
        return ccw_driver_register(&zfcp_ccw_driver);
 }
+
+/**
+ * zfcp_get_adapter_by_busid - find zfcp_adapter struct
+ * @busid: bus id string of zfcp adapter to find
+ */
+struct zfcp_adapter *zfcp_get_adapter_by_busid(char *busid)
+{
+       struct ccw_device *ccw_device;
+       struct zfcp_adapter *adapter = NULL;
+
+       ccw_device = get_ccwdev_by_busid(&zfcp_ccw_driver, busid);
+       if (ccw_device) {
+               adapter = dev_get_drvdata(&ccw_device->dev);
+               put_device(&ccw_device->dev);
+       }
+       return adapter;
+}