drbd: drbd_create_device(): Take a resource instead of a connection argument

Signed-off-by: Andreas Gruenbacher <agruen@linbit.com>
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>

drivers/block/drbd/drbd_int.h

@@ -1239,7 +1239,7 @@ extern struct bio *bio_alloc_drbd(gfp_t gfp_mask);
 extern rwlock_t global_state_lock;
 
 extern int conn_lowest_minor(struct drbd_connection *connection);
-enum drbd_ret_code drbd_create_device(struct drbd_connection *connection, unsigned int minor, int vnr);
+enum drbd_ret_code drbd_create_device(struct drbd_resource *resource, unsigned int minor, int vnr);
 extern void drbd_destroy_device(struct kref *kref);
 extern void drbd_delete_device(struct drbd_device *mdev);
 

drivers/block/drbd/drbd_main.c

@@ -2659,9 +2659,9 @@ static int init_submitter(struct drbd_device *device)
 	return 0;
 }
 
-enum drbd_ret_code drbd_create_device(struct drbd_connection *connection, unsigned int minor, int vnr)
+enum drbd_ret_code drbd_create_device(struct drbd_resource *resource, unsigned int minor, int vnr)
 {
-	struct drbd_resource *resource = connection->resource;
+	struct drbd_connection *connection = first_connection(resource);
 	struct drbd_device *device;
 	struct drbd_peer_device *peer_device;
 	struct gendisk *disk;

drivers/block/drbd/drbd_nl.c

@@ -3348,7 +3348,7 @@ int drbd_adm_new_minor(struct sk_buff *skb, struct genl_info *info)
 		goto out;
 	}
 
-	retcode = drbd_create_device(adm_ctx.connection, dh->minor, adm_ctx.volume);
+	retcode = drbd_create_device(adm_ctx.resource, dh->minor, adm_ctx.volume);
 out:
 	drbd_adm_finish(info, retcode);
 	return 0;