patch "USB: serial: mos7720: fix remote wakeup" added to usb-testing

This is a note to let you know that I've just added the patch titled

USB: serial: mos7720: fix remote wakeup

to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-testing branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will be merged to the usb-next branch sometime soon, after it passes testing, and the merge window is open.

If you have any questions about this process, please let me know.

From ea422312a462696093b5db59d294439796cba4ad Mon Sep 17 00:00:00 2001
From: Johan Hovold <[email protected]>
Date: Thu, 7 Nov 2019 14:21:18 +0100
Subject: USB: serial: mos7720: fix remote wakeup

The driver was setting the device remote-wakeup feature during probe in violation of the USB specification (which says it should only be set just prior to suspending the device). This could potentially waste power during suspend as well as lead to spurious wakeups.

Note that USB core would clear the remote-wakeup feature at first resume.

---
 drivers/usb/serial/mos7720.c | 4 ----
 1 file changed, 4 deletions(-)

index 18110225d506..2ec4eeacebc7 100644
@@ -1833,10 +1833,6 @@ static int mos7720_startup(struct usb_serial *serial)
 	product = le16_to_cpu(serial->dev->descriptor.idProduct);
 	dev = serial->dev;
 
-	/* setting configuration feature to one */
-	usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
-			(__u8)0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5000);
-
 	if (product == MOSCHIP_DEVICE_ID_7715) {
 		struct urb *urb = serial->port[0]->interrupt_in_urb;
 

2.24.0