[PATCH 2/4] media: mceusb: drop redundant device reference

[Johan Hovold <johan@kernel.org>]

Driver core holds a reference to the USB interface and its parent USB
device while the interface is bound to a driver and there is no need to
take additional references unless the structures are needed after
disconnect.

Drop the redundant device reference to reduce cargo culting, make it
easier to spot drivers where an extra reference is needed, and reduce
the risk of memory leaks when drivers fail to release it.

Signed-off-by: Johan Hovold <johan@kernel.org>
---
 drivers/media/rc/mceusb.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/media/rc/mceusb.c b/drivers/media/rc/mceusb.c
index ed55e9ec3c57..d9bdf0b9487a 100644
--- a/drivers/media/rc/mceusb.c
+++ b/drivers/media/rc/mceusb.c
@@ -1729,7 +1729,7 @@ static int mceusb_dev_probe(struct usb_interface *intf,
 		goto urb_in_alloc_fail;
 
 	ir->usbintf = intf;
-	ir->usbdev = usb_get_dev(dev);
+	ir->usbdev = dev;
 	ir->dev = &intf->dev;
 	ir->len_in = maxp;
 	ir->flags.microsoft_gen1 = is_microsoft_gen1;
@@ -1817,7 +1817,6 @@ static int mceusb_dev_probe(struct usb_interface *intf,
 	/* Error-handling path */
 rc_dev_fail:
 	cancel_work_sync(&ir->kevent);
-	usb_put_dev(ir->usbdev);
 	usb_kill_urb(ir->urb_in);
 	usb_free_urb(ir->urb_in);
 urb_in_alloc_fail:
@@ -1849,7 +1848,6 @@ static void mceusb_dev_disconnect(struct usb_interface *intf)
 	usb_kill_urb(ir->urb_in);
 	usb_free_urb(ir->urb_in);
 	usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
-	usb_put_dev(dev);
 
 	kfree(ir);
 }
-- 
2.52.0