X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=drivers%2Fhid%2Fhidraw.c;h=af3edb98df435f2c3fa22fde81350d4f15dcd286;hb=9301975ec251bab1ad7cfcb84a688b26187e4e4a;hp=2fde6c63f47dffa2d89c224cd15c1be215d4d20e;hpb=6d52dcbe56ca8464bcad56d98a64bcd781596663;p=~andy%2Flinux

diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 2fde6c63f47..af3edb98df4 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -105,6 +105,7 @@ out:
 static ssize_t hidraw_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
 {
 	unsigned int minor = iminor(file->f_path.dentry->d_inode);
+	/* FIXME: What stops hidraw_table going NULL */
 	struct hid_device *dev = hidraw_table[minor]->hid;
 	__u8 *buf;
 	int ret = 0;
@@ -112,7 +113,7 @@ static ssize_t hidraw_write(struct file *file, const char __user *buffer, size_t
 	if (!dev->hid_output_raw_report)
 		return -ENODEV;
 
-	if (count > HID_MIN_BUFFER_SIZE) {
+	if (count > HID_MAX_BUFFER_SIZE) {
 		printk(KERN_WARNING "hidraw: pid %d passed too large report\n",
 				task_pid_nr(current));
 		return -EINVAL;
@@ -180,7 +181,7 @@ static int hidraw_open(struct inode *inode, struct file *file)
 
 	dev = hidraw_table[minor];
 	if (!dev->open++)
-		dev->hid->hid_open(dev->hid);
+		dev->hid->ll_driver->open(dev->hid);
 
 out_unlock:
 	spin_unlock(&minors_lock);
@@ -206,43 +207,48 @@ static int hidraw_release(struct inode * inode, struct file * file)
 	dev = hidraw_table[minor];
 	if (!dev->open--) {
 		if (list->hidraw->exist)
-			dev->hid->hid_close(dev->hid);
+			dev->hid->ll_driver->close(dev->hid);
 		else
 			kfree(list->hidraw);
 	}
 
+	kfree(list);
+
 	return 0;
 }
 
-static int hidraw_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static long hidraw_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
 {
+	struct inode *inode = file->f_path.dentry->d_inode;
 	unsigned int minor = iminor(inode);
+	long ret = 0;
+	/* FIXME: What stops hidraw_table going NULL */
 	struct hidraw *dev = hidraw_table[minor];
 	void __user *user_arg = (void __user*) arg;
 
+	lock_kernel();
 	switch (cmd) {
 		case HIDIOCGRDESCSIZE:
 			if (put_user(dev->hid->rsize, (int __user *)arg))
-				return -EFAULT;
-			return 0;
+				ret = -EFAULT;
+			break;
 
 		case HIDIOCGRDESC:
 			{
 				__u32 len;
 
 				if (get_user(len, (int __user *)arg))
-					return -EFAULT;
-
-				if (len > HID_MAX_DESCRIPTOR_SIZE - 1)
-					return -EINVAL;
-
-				if (copy_to_user(user_arg + offsetof(
-								struct hidraw_report_descriptor,
-								value[0]),
-							dev->hid->rdesc,
-							min(dev->hid->rsize, len)))
-						return -EFAULT;
-				return 0;
+					ret = -EFAULT;
+				else if (len > HID_MAX_DESCRIPTOR_SIZE - 1)
+					ret = -EINVAL;
+				else if (copy_to_user(user_arg + offsetof(
+					struct hidraw_report_descriptor,
+					value[0]),
+					dev->hid->rdesc,
+					min(dev->hid->rsize, len)))
+					ret = -EFAULT;
+				break;
 			}
 		case HIDIOCGRAWINFO:
 			{
@@ -252,15 +258,13 @@ static int hidraw_ioctl(struct inode *inode, struct file *file, unsigned int cmd
 				dinfo.vendor = dev->hid->vendor;
 				dinfo.product = dev->hid->product;
 				if (copy_to_user(user_arg, &dinfo, sizeof(dinfo)))
-					return -EFAULT;
-
-				return 0;
+					ret = -EFAULT;
+				break;
 			}
 		default:
-			printk(KERN_EMERG "hidraw: unsupported ioctl() %x\n",
-					cmd);
+			ret = -ENOTTY;
 	}
-	return -EINVAL;
+	return ret;
 }
 
 static const struct file_operations hidraw_ops = {
@@ -270,7 +274,7 @@ static const struct file_operations hidraw_ops = {
 	.poll =         hidraw_poll,
 	.open =         hidraw_open,
 	.release =      hidraw_release,
-	.ioctl =        hidraw_ioctl,
+	.unlocked_ioctl = hidraw_ioctl,
 };
 
 void hidraw_report_event(struct hid_device *hid, u8 *data, int len)
@@ -323,7 +327,7 @@ int hidraw_connect(struct hid_device *hid)
 	}
 
 	dev->dev = device_create(hidraw_class, NULL, MKDEV(hidraw_major, minor),
-				"%s%d", "hidraw", minor);
+				 NULL, "%s%d", "hidraw", minor);
 
 	if (IS_ERR(dev->dev)) {
 		spin_lock(&minors_lock);
@@ -362,7 +366,7 @@ void hidraw_disconnect(struct hid_device *hid)
 	device_destroy(hidraw_class, MKDEV(hidraw_major, hidraw->minor));
 
 	if (hidraw->open) {
-		hid->hid_close(hid);
+		hid->ll_driver->close(hid);
 		wake_up_interruptible(&hidraw->wait);
 	} else {
 		kfree(hidraw);