The Coverity checker noted the following inconsequent NULL checking in
drivers/usb/serial/mos7720.c:
<-- snip -->
...
static void mos7720_close(struct usb_serial_port *port, struct file *filp)
{
...
/* While closing port, shutdown all bulk read, write *
* and interrupt read if they exists */
if (serial->dev) {
dbg("Shutdown bulk write");
usb_kill_urb(port->write_urb);
dbg("Shutdown bulk read");
usb_kill_urb(port->read_urb);
}
data = 0x00;
send_mos_cmd(serial, MOS_WRITE, port->number - port->serial->minor,
0x04, &data);
...
<-- snip -->
Note that "send_mos_cmd(serial,...)" dereferences "serial->dev".
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
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