USB: serial: fix console error reporting
authorJohan Hovold <jhovold@gmail.com>
Fri, 10 Feb 2012 12:20:49 +0000 (13:20 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 10 Feb 2012 18:20:36 +0000 (10:20 -0800)
commit548dd4b6da8a8e428453d55f7fa7b8a46498d147
treee8c3ba7893cebd37f368a7dff70543019800f67a
parente688355bfeadf17ef522b1e62cc12f8e88e69667
USB: serial: fix console error reporting

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 <shemminger@vyatta.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/serial/generic.c