From 63a9609513007537a0b23ac511fd73f9bd609ea0 Mon Sep 17 00:00:00 2001 From: Joris van Rantwijk Date: Thu, 24 Sep 2009 20:20:20 +0200 Subject: [PATCH] USB: Fix throttling in generic usbserial driver The generic usbserial driver in Linux 2.6.31 halts its receiving channel in response to throttle requests from the line discipline. Unfortunately it drops the contents of the first URB received after throttling takes effect. This patch corrects that problem. Signed-off-by: Joris van Rantwijk Acked-by: Johan Hovold Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/generic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index deba08c..bbe005c 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -546,7 +546,7 @@ void usb_serial_generic_unthrottle(struct tty_struct *tty) if (was_throttled) { /* Resume reading from device */ - usb_serial_generic_resubmit_read_urb(port, GFP_KERNEL); + flush_and_resubmit_read_urb(port); } } -- 1.8.2.3