[PATCH] greybus: es2: 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/greybus/es2.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/greybus/es2.c b/drivers/greybus/es2.c
index 6ae0ac828afa..bb513ef7f7ff 100644
--- a/drivers/greybus/es2.c
+++ b/drivers/greybus/es2.c
@@ -806,8 +806,6 @@ static void es2_destroy(struct es2_ap_dev *es2)
 
 	udev = es2->usb_dev;
 	gb_hd_put(es2->hd);
-
-	usb_put_dev(udev);
 }
 
 static void cport_in_callback(struct urb *urb)
@@ -1257,7 +1255,7 @@ static int ap_probe(struct usb_interface *interface,
 	bool bulk_in_found = false;
 	bool arpc_in_found = false;
 
-	udev = usb_get_dev(interface_to_usbdev(interface));
+	udev = interface_to_usbdev(interface);
 
 	num_cports = apb_get_cport_count(udev);
 	if (num_cports < 0) {
-- 
2.52.0