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USB: serial: mos7840: drop read-urb check

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Drop read-urb check which is always false from completion the callback.

The driver read-urb pointer is set at every open and is never cleared.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
This commit is contained in:
Johan Hovold 2019-11-07 14:29:03 +01:00
parent 7b2faede67
commit f8e8dcaf14
1 changed files with 0 additions and 11 deletions
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11
drivers/usb/serial/mos7840.c
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@ -457,12 +457,6 @@ static void mos7840_bulk_in_callback(struct urb *urb)
dev_dbg(&port->dev, "icount.rx is %d:\n", port->icount.rx);
}
if (!mos7840_port->read_urb) {
dev_dbg(&port->dev, "%s", "URB KILLED !!!\n");
mos7840_port->read_urb_busy = false;
return;
}
if (mos7840_port->has_led)
mos7840_led_activity(port);
@ -1377,11 +1371,6 @@ static void mos7840_set_termios(struct tty_struct *tty,
mos7840_change_port_settings(tty, mos7840_port, old_termios);
if (!mos7840_port->read_urb) {
dev_dbg(&port->dev, "%s", "URB KILLED !!!!!\n");
return;
}
if (!mos7840_port->read_urb_busy) {
mos7840_port->read_urb_busy = true;
status = usb_submit_urb(mos7840_port->read_urb, GFP_KERNEL);