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USB: last abuses of intfdata in close for usb-serial drivers

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these drivers abused intfdata in close() as flags for binding.
That races with reprobing of those devices. This patch fixes that by using
the flag and the locks introduced with the patch against mos7720.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Oliver Neukum
2008-01-23 12:28:45 +01:00
committed by Greg Kroah-Hartman
parent 3edbc98650
commit 0915f490d8
4 changed files with 19 additions and 15 deletions
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2
drivers/usb/serial/pl2303.c
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@@ -667,7 +667,7 @@ static void pl2303_close(struct usb_serial_port *port, struct file *filp)
set_current_state(TASK_INTERRUPTIBLE);
if (pl2303_buf_data_avail(priv->buf) == 0 ||
timeout == 0 || signal_pending(current) ||
!usb_get_intfdata(port->serial->interface)) /* disconnect */
port->serial->disconnected)
break;
spin_unlock_irqrestore(&priv->lock, flags);
timeout = schedule_timeout(timeout);