1 files changed, 11 insertions, 28 deletions

diff --git a/drivers/rapidio/devices/rio_mport_cdev.c b/drivers/rapidio/devices/rio_mport_cdev.c
index a115730ebf14..995cfeca972b 100644
--- a/drivers/rapidio/devices/rio_mport_cdev.c
+++ b/drivers/rapidio/devices/rio_mport_cdev.c
@@ -98,18 +98,6 @@ MODULE_PARM_DESC(dbg_level, "Debugging output level (default 0 = none)");
 #endif
 
 /*
- * An internal DMA coherent buffer
- */
-struct mport_dma_buf {
-	void		*ib_base;
-	dma_addr_t	ib_phys;
-	u32		ib_size;
-	u64		ib_rio_base;
-	bool		ib_map;
-	struct file	*filp;
-};
-
-/*
  * Internal memory mapping structure
  */
 enum rio_mport_map_dir {
@@ -131,14 +119,6 @@ struct rio_mport_mapping {
 	struct file *filp;
 };
 
-struct rio_mport_dma_map {
-	int valid;
-	u64 length;
-	void *vaddr;
-	dma_addr_t paddr;
-};
-
-#define MPORT_MAX_DMA_BUFS	16
 #define MPORT_EVENT_DEPTH	10
 
 /*
@@ -250,7 +230,9 @@ static DEFINE_MUTEX(mport_devs_lock);
 static DECLARE_WAIT_QUEUE_HEAD(mport_cdev_wait);
 #endif
 
-static struct class *dev_class;
+static const struct class dev_class = {
+	.name = DRV_NAME,
+};
 static dev_t dev_number;
 
 static void mport_release_mapping(struct kref *ref);
@@ -1740,7 +1722,8 @@ static int rio_mport_add_riodev(struct mport_cdev_priv *priv,
 		err = rio_add_net(net);
 		if (err) {
 			rmcd_debug(RDEV, "failed to register net, err=%d", err);
-			kfree(net);
+			put_device(&net->dev);
+			mport->net = NULL;
 			goto cleanup;
 		}
 	}
@@ -2379,7 +2362,7 @@ static struct mport_dev *mport_cdev_add(struct rio_mport *mport)
 
 	device_initialize(&md->dev);
 	md->dev.devt = MKDEV(MAJOR(dev_number), mport->id);
-	md->dev.class = dev_class;
+	md->dev.class = &dev_class;
 	md->dev.parent = &mport->dev;
 	md->dev.release = mport_device_release;
 	dev_set_name(&md->dev, DEV_NAME "%d", mport->id);
@@ -2600,10 +2583,10 @@ static int __init mport_init(void)
 	int ret;
 
 	/* Create device class needed by udev */
-	dev_class = class_create(DRV_NAME);
-	if (IS_ERR(dev_class)) {
+	ret = class_register(&dev_class);
+	if (ret) {
 		rmcd_error("Unable to create " DRV_NAME " class");
-		return PTR_ERR(dev_class);
+		return ret;
 	}
 
 	ret = alloc_chrdev_region(&dev_number, 0, RIO_MAX_MPORTS, DRV_NAME);
@@ -2624,7 +2607,7 @@ static int __init mport_init(void)
 err_cli:
 	unregister_chrdev_region(dev_number, RIO_MAX_MPORTS);
 err_chr:
-	class_destroy(dev_class);
+	class_unregister(&dev_class);
 	return ret;
 }
 
@@ -2634,7 +2617,7 @@ err_chr:
 static void __exit mport_exit(void)
 {
 	class_interface_unregister(&rio_mport_interface);
-	class_destroy(dev_class);
+	class_unregister(&dev_class);
 	unregister_chrdev_region(dev_number, RIO_MAX_MPORTS);
 }