X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fusb%2Fcore%2Fdevices.c;h=ea398e5d50af5c6bd90621d06946ad6617af0bdb;hb=refs%2Fheads%2Fvserver;hp=2684e15b813b6cde3001c660aaeff7e8f097b04d;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git

diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index 2684e15b8..ea398e5d5 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -57,6 +57,7 @@
 #include <linux/usb.h>
 #include <linux/smp_lock.h>
 #include <linux/usbdevice_fs.h>
+#include <linux/mutex.h>
 #include <asm/uaccess.h>
 
 #include "usb.h"
@@ -174,12 +175,13 @@ static char *usb_dump_endpoint_descriptor (
 )
 {
 	char dir, unit, *type;
-	unsigned interval, in, bandwidth = 1;
+	unsigned interval, bandwidth = 1;
 
 	if (start > end)
 		return start;
-	in = (desc->bEndpointAddress & USB_DIR_IN);
-	dir = in ? 'I' : 'O';
+
+	dir = usb_endpoint_dir_in(desc) ? 'I' : 'O';
+
 	if (speed == USB_SPEED_HIGH) {
 		switch (le16_to_cpu(desc->wMaxPacketSize) & (0x03 << 11)) {
 		case 1 << 11:	bandwidth = 2; break;
@@ -203,7 +205,7 @@ static char *usb_dump_endpoint_descriptor (
 		break;
 	case USB_ENDPOINT_XFER_BULK:
 		type = "Bulk";
-		if (speed == USB_SPEED_HIGH && !in)	/* uframes per NAK */
+		if (speed == USB_SPEED_HIGH && dir == 'O') /* uframes per NAK */
 			interval = desc->bInterval;
 		else
 			interval = 0;
@@ -570,7 +572,7 @@ static ssize_t usb_device_read(struct file *file, char __user *buf, size_t nbyte
 	if (!access_ok(VERIFY_WRITE, buf, nbytes))
 		return -EFAULT;
 
-	down (&usb_bus_list_lock);
+	mutex_lock(&usb_bus_list_lock);
 	/* print devices for all busses */
 	list_for_each_entry(bus, &usb_bus_list, bus_list) {
 		/* recurse through all children of the root hub */
@@ -580,19 +582,19 @@ static ssize_t usb_device_read(struct file *file, char __user *buf, size_t nbyte
 		ret = usb_device_dump(&buf, &nbytes, &skip_bytes, ppos, bus->root_hub, bus, 0, 0, 0);
 		usb_unlock_device(bus->root_hub);
 		if (ret < 0) {
-			up(&usb_bus_list_lock);
+			mutex_unlock(&usb_bus_list_lock);
 			return ret;
 		}
 		total_written += ret;
 	}
-	up (&usb_bus_list_lock);
+	mutex_unlock(&usb_bus_list_lock);
 	return total_written;
 }
 
 /* Kernel lock for "lastev" protection */
 static unsigned int usb_device_poll(struct file *file, struct poll_table_struct *wait)
 {
-	struct usb_device_status *st = (struct usb_device_status *)file->private_data;
+	struct usb_device_status *st = file->private_data;
 	unsigned int mask = 0;
 
 	lock_kernel();
@@ -602,7 +604,7 @@ static unsigned int usb_device_poll(struct file *file, struct poll_table_struct
 			unlock_kernel();
 			return POLLIN;
 		}
-		
+
 		/* we may have dropped BKL - need to check for having lost the race */
 		if (file->private_data) {
 			kfree(st);
@@ -666,7 +668,7 @@ static loff_t usb_device_lseek(struct file * file, loff_t offset, int orig)
 	return ret;
 }
 
-struct file_operations usbfs_devices_fops = {
+const struct file_operations usbfs_devices_fops = {
 	.llseek =	usb_device_lseek,
 	.read =		usb_device_read,
 	.poll =		usb_device_poll,