X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fusb%2Fmisc%2Flegousbtower.c;fp=drivers%2Fusb%2Fmisc%2Flegousbtower.c;h=779bcf0373adb9e75224bdbdab3a7306f88dfb30;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=7d06105763d4cca2b039bbdefcd8deaae2e0b181;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
index 7d0610576..779bcf037 100644
--- a/drivers/usb/misc/legousbtower.c
+++ b/drivers/usb/misc/legousbtower.c
@@ -83,6 +83,7 @@
 #include <linux/module.h>
 #include <linux/smp_lock.h>
 #include <linux/completion.h>
+#include <linux/mutex.h>
 #include <asm/uaccess.h>
 #include <linux/usb.h>
 #include <linux/poll.h>
@@ -256,7 +257,7 @@ static void tower_disconnect	(struct usb_interface *interface);
 
 
 /* prevent races between open() and disconnect */
-static DECLARE_MUTEX (disconnect_sem);
+static DEFINE_MUTEX (disconnect_mutex);
 
 /* file operations needed when we register this driver */
 static struct file_operations tower_fops = {
@@ -271,19 +272,17 @@ static struct file_operations tower_fops = {
 
 /*
  * usb class driver info in order to get a minor number from the usb core,
- * and to have the device registered with devfs and the driver core
+ * and to have the device registered with the driver core
  */
 static struct usb_class_driver tower_class = {
-	.name =		"usb/legousbtower%d",
+	.name =		"legousbtower%d",
 	.fops =		&tower_fops,
-	.mode =		S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH,
 	.minor_base =	LEGO_USB_TOWER_MINOR_BASE,
 };
 
 
 /* usb specific object needed to register this driver with the usb subsystem */
 static struct usb_driver tower_driver = {
-	.owner =	THIS_MODULE,
 	.name =		"legousbtower",
 	.probe =	tower_probe,
 	.disconnect =	tower_disconnect,
@@ -351,7 +350,7 @@ static int tower_open (struct inode *inode, struct file *file)
 	nonseekable_open(inode, file);
 	subminor = iminor(inode);
 
-	down (&disconnect_sem);
+	mutex_lock (&disconnect_mutex);
 
 	interface = usb_find_interface (&tower_driver, subminor);
 
@@ -429,7 +428,7 @@ unlock_exit:
 	up (&dev->sem);
 
 unlock_disconnect_exit:
-	up (&disconnect_sem);
+	mutex_unlock (&disconnect_mutex);
 
 	dbg(2, "%s: leave, return value %d ", __FUNCTION__, retval);
 
@@ -1007,7 +1006,7 @@ static void tower_disconnect (struct usb_interface *interface)
 
 	dbg(2, "%s: enter", __FUNCTION__);
 
-	down (&disconnect_sem);
+	mutex_lock (&disconnect_mutex);
 
 	dev = usb_get_intfdata (interface);
 	usb_set_intfdata (interface, NULL);
@@ -1029,7 +1028,7 @@ static void tower_disconnect (struct usb_interface *interface)
 		up (&dev->sem);
 	}
 
-	up (&disconnect_sem);
+	mutex_unlock (&disconnect_mutex);
 
 	info("LEGO USB Tower #%d now disconnected", (minor - LEGO_USB_TOWER_MINOR_BASE));