mousedev: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index b989748..8137e50 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -14,6 +14,7 @@
#define MOUSEDEV_MIX 31
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/poll.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -545,16 +546,21 @@
if (i >= MOUSEDEV_MINORS)
return -ENODEV;
+ lock_kernel();
error = mutex_lock_interruptible(&mousedev_table_mutex);
- if (error)
+ if (error) {
+ unlock_kernel();
return error;
+ }
mousedev = mousedev_table[i];
if (mousedev)
get_device(&mousedev->dev);
mutex_unlock(&mousedev_table_mutex);
- if (!mousedev)
+ if (!mousedev) {
+ unlock_kernel();
return -ENODEV;
+ }
client = kzalloc(sizeof(struct mousedev_client), GFP_KERNEL);
if (!client) {
@@ -573,6 +579,7 @@
goto err_free_client;
file->private_data = client;
+ unlock_kernel();
return 0;
err_free_client:
@@ -580,6 +587,7 @@
kfree(client);
err_put_mousedev:
put_device(&mousedev->dev);
+ unlock_kernel();
return error;
}