X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fusb%2Fcore%2Fdevices.c;h=c0f37343a276ce551705065625f923ec13f7f629;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=ef0b35731ff078789d4129ca32bbfe4e4f542a19;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index ef0b35731..c0f37343a 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"
@@ -67,45 +68,45 @@
 /* Define ALLOW_SERIAL_NUMBER if you want to see the serial number of devices */
 #define ALLOW_SERIAL_NUMBER
 
-static char *format_topo =
+static const char *format_topo =
 /* T:  Bus=dd Lev=dd Prnt=dd Port=dd Cnt=dd Dev#=ddd Spd=ddd MxCh=dd */
 "\nT:  Bus=%2.2d Lev=%2.2d Prnt=%2.2d Port=%2.2d Cnt=%2.2d Dev#=%3d Spd=%3s MxCh=%2d\n";
 
-static char *format_string_manufacturer =
+static const char *format_string_manufacturer =
 /* S:  Manufacturer=xxxx */
   "S:  Manufacturer=%.100s\n";
 
-static char *format_string_product =
+static const char *format_string_product =
 /* S:  Product=xxxx */
   "S:  Product=%.100s\n";
 
 #ifdef ALLOW_SERIAL_NUMBER
-static char *format_string_serialnumber =
+static const char *format_string_serialnumber =
 /* S:  SerialNumber=xxxx */
   "S:  SerialNumber=%.100s\n";
 #endif
 
-static char *format_bandwidth =
+static const char *format_bandwidth =
 /* B:  Alloc=ddd/ddd us (xx%), #Int=ddd, #Iso=ddd */
   "B:  Alloc=%3d/%3d us (%2d%%), #Int=%3d, #Iso=%3d\n";
   
-static char *format_device1 =
+static const char *format_device1 =
 /* D:  Ver=xx.xx Cls=xx(sssss) Sub=xx Prot=xx MxPS=dd #Cfgs=dd */
   "D:  Ver=%2x.%02x Cls=%02x(%-5s) Sub=%02x Prot=%02x MxPS=%2d #Cfgs=%3d\n";
 
-static char *format_device2 =
+static const char *format_device2 =
 /* P:  Vendor=xxxx ProdID=xxxx Rev=xx.xx */
   "P:  Vendor=%04x ProdID=%04x Rev=%2x.%02x\n";
 
-static char *format_config =
+static const char *format_config =
 /* C:  #Ifs=dd Cfg#=dd Atr=xx MPwr=dddmA */
   "C:%c #Ifs=%2d Cfg#=%2d Atr=%02x MxPwr=%3dmA\n";
   
-static char *format_iface =
+static const char *format_iface =
 /* I:  If#=dd Alt=dd #EPs=dd Cls=xx(sssss) Sub=xx Prot=xx Driver=xxxx*/
   "I:  If#=%2d Alt=%2d #EPs=%2d Cls=%02x(%-5s) Sub=%02x Prot=%02x Driver=%s\n";
 
-static char *format_endpt =
+static const char *format_endpt =
 /* E:  Ad=xx(s) Atr=xx(ssss) MxPS=dddd Ivl=D?s */
   "E:  Ad=%02x(%c) Atr=%02x(%-4s) MxPS=%4d Ivl=%d%cs\n";
 
@@ -239,7 +240,7 @@ static char *usb_dump_interface_descriptor(char *start, char *end,
 	int setno)
 {
 	const struct usb_interface_descriptor *desc = &intfc->altsetting[setno].desc;
-	char *driver_name = "";
+	const char *driver_name = "";
 
 	if (start > end)
 		return start;
@@ -545,10 +546,10 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes, loff_t *ski
 		struct usb_device *childdev = usbdev->children[chix];
 
 		if (childdev) {
-			down(&childdev->serialize);
+			usb_lock_device(childdev);
 			ret = usb_device_dump(buffer, nbytes, skip_bytes, file_offset, childdev,
 					bus, level + 1, chix, ++cnt);
-			up(&childdev->serialize);
+			usb_unlock_device(childdev);
 			if (ret == -EFAULT)
 				return total_written;
 			total_written += ret;
@@ -570,7 +571,7 @@ 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 */
@@ -580,12 +581,12 @@ 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;
 }