[PATCH 04/10] usb-serial: ipw driver port.

[Luiz Fernando Capitulino]

  Ports the ipw driver from write_urb_busy spin_lock to
usb_serial_write_urb_lock() functions.

Signed-off-by: Luiz Capitulino <lcapitulino@xxxxxxxxxxxxxxx>

 drivers/usb/serial/ipw.c |    9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff -Nparu -X /home/lcapitulino/kernels/dontdiff a/drivers/usb/serial/ipw.c a~/drivers/usb/serial/ipw.c
--- a/drivers/usb/serial/ipw.c	2005-12-04 01:44:17.000000000 -0200
+++ a~/drivers/usb/serial/ipw.c	2005-12-04 14:35:49.000000000 -0200
@@ -44,7 +44,6 @@
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/module.h>
-#include <linux/spinlock.h>
 #include <linux/usb.h>
 #include <asm/uaccess.h>
 #include "usb-serial.h"
@@ -399,14 +398,10 @@ static int ipw_write(struct usb_serial_p
 		return 0;
 	}
 
-	spin_lock(&port->lock);
-	if (port->write_urb_busy) {
-		spin_unlock(&port->lock);
+	if (usb_serial_write_urb_lock(port)) {
 		dbg("%s - already writing", __FUNCTION__);
 		return 0;
 	}
-	port->write_urb_busy = 1;
-	spin_unlock(&port->lock);
 
 	count = min(count, port->bulk_out_size);
 	memcpy(port->bulk_out_buffer, buf, count);
@@ -422,7 +417,7 @@ static int ipw_write(struct usb_serial_p
 
 	ret = usb_submit_urb(port->write_urb, GFP_ATOMIC);
 	if (ret != 0) {
-		port->write_urb_busy = 0;
+		usb_serial_write_urb_unlock(port);
 		dbg("%s - usb_submit_urb(write bulk) failed with error = %d", __FUNCTION__, ret);
 		return ret;
 	}


-- 
Luiz Fernando N. Capitulino
-
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