This is a note to let you know that I've just added the patch titled
USB: serial: fix console error reporting
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-serial-fix-console-error-reporting.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 548dd4b6da8a8e428453d55f7fa7b8a46498d147 Mon Sep 17 00:00:00 2001
From: Johan Hovold <[email protected]>
Date: Fri, 10 Feb 2012 13:20:49 +0100
Subject: USB: serial: fix console error reporting
From: Johan Hovold <[email protected]>
commit 548dd4b6da8a8e428453d55f7fa7b8a46498d147 upstream.
Do not report errors in write path if port is used as a console as this
may trigger the same error (and error report) resulting in a loop.
Reported-by: Stephen Hemminger <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/usb/serial/generic.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -215,8 +215,10 @@ retry:
clear_bit(i, &port->write_urbs_free);
result = usb_submit_urb(urb, GFP_ATOMIC);
if (result) {
- dev_err(&port->dev, "%s - error submitting urb: %d\n",
+ if (!port->port.console) {
+ dev_err(&port->dev, "%s - error submitting urb: %d\n",
__func__, result);
+ }
set_bit(i, &port->write_urbs_free);
spin_lock_irqsave(&port->lock, flags);
port->tx_bytes -= count;
Patches currently in stable-queue which might be from [email protected] are
queue-3.0/usb-serial-fix-console-error-reporting.patch
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