From: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Date: Wed, 10 Mar 2010 04:38:47 +0000 (-0800)
Subject: Input: mousedev - remove BKL
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c90c6a885ac9827921e8f94f3ce4360ae11148f1;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

Input: mousedev - remove BKL

There's no need for BKL in mousedev, relevan protection is provided by
a private mutex.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---

diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index a13d80f7da17..f34b22bce4ff 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -15,7 +15,6 @@
 
 #include <linux/sched.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/poll.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -542,10 +541,8 @@ static int mousedev_open(struct inode *inode, struct file *file)
 	if (i >= MOUSEDEV_MINORS)
 		return -ENODEV;
 
-	lock_kernel();
 	error = mutex_lock_interruptible(&mousedev_table_mutex);
 	if (error) {
-		unlock_kernel();
 		return error;
 	}
 	mousedev = mousedev_table[i];
@@ -554,7 +551,6 @@ static int mousedev_open(struct inode *inode, struct file *file)
 	mutex_unlock(&mousedev_table_mutex);
 
 	if (!mousedev) {
-		unlock_kernel();
 		return -ENODEV;
 	}
 
@@ -575,7 +571,6 @@ static int mousedev_open(struct inode *inode, struct file *file)
 		goto err_free_client;
 
 	file->private_data = client;
-	unlock_kernel();
 	return 0;
 
  err_free_client:
@@ -583,7 +578,6 @@ static int mousedev_open(struct inode *inode, struct file *file)
 	kfree(client);
  err_put_mousedev:
 	put_device(&mousedev->dev);
-	unlock_kernel();
 	return error;
 }