From 7a5c7b42d3c7b1e0085d48414ee73003d3888d1f Mon Sep 17 00:00:00 2001 From: Naranjo Manuel Francisco Date: Wed, 15 Nov 2006 15:14:27 -0300 Subject: [PATCH] USB: fix aircable.c: inconsequent NULL checking > 2006/11/11, Adrian Bunk : > > The Coverity checker spotted the following in > > drivers/usb/serial/aircable.c: > > > > <-- snip --> > > > > ... > > static void aircable_read(void *params) > > { > > ... Hi everyone, Sorry for the long time response but here is the patch, I think this way should work, if anyone has any suggestion let me know. What I do now is, in case I don't have the tty available I reschedule the work, I have tried it and it works with no problem, I even tried removing the device, and didn't find anything strange. Signed-off-by: Naranjo Manuel Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/aircable.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c index 8554c1a7b9fc..b1b5707bc99a 100644 --- a/drivers/usb/serial/aircable.c +++ b/drivers/usb/serial/aircable.c @@ -270,8 +270,11 @@ static void aircable_read(void *params) */ tty = port->tty; - if (!tty) + if (!tty) { schedule_work(&priv->rx_work); + err("%s - No tty available", __FUNCTION__); + return ; + } count = min(64, serial_buf_data_avail(priv->rx_buf));