[1/1] HID: hidraw, fix window in hidraw_release

Commit Message

Jiri Slaby Oct. 19, 2010, 9:24 a.m. UTC

None

Patch

diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 925992f..6d81be3 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -218,9 +218,13 @@  static int hidraw_release(struct inode * inode, struct file * file)
 	unsigned int minor = iminor(inode);
 	struct hidraw *dev;
 	struct hidraw_list *list = file->private_data;
+	int ret;
 
-	if (!hidraw_table[minor])
-		return -ENODEV;
+	mutex_lock(&minors_lock);
+	if (!hidraw_table[minor]) {
+		ret = -ENODEV;
+		goto unlock;
+	}
 
 	list_del(&list->node);
 	dev = hidraw_table[minor];
@@ -233,10 +237,12 @@  static int hidraw_release(struct inode * inode, struct file * file)
 			kfree(list->hidraw);
 		}
 	}
-
+	ret = 0;
+unlock:
+	mutex_unlock(&minors_lock);
 	kfree(list);
 
-	return 0;
+	return ret;
 }
 
 static long hidraw_ioctl(struct file *file, unsigned int cmd,