1 files changed, 5 insertions, 12 deletions

diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 42e65cf8ab52..30eff80fed6f 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -26,7 +26,6 @@
 #include <linux/bootmem.h>
 #include <linux/splice.h>
 #include <linux/pfn.h>
-#include <linux/smp_lock.h>
 
 #include <asm/uaccess.h>
 #include <asm/io.h>
@@ -892,29 +891,23 @@ static int memory_open(struct inode *inode, struct file *filp)
 {
         int minor;
         const struct memdev *dev;
-        int ret = -ENXIO;
-
-        lock_kernel();
 
         minor = iminor(inode);
         if (minor >= ARRAY_SIZE(devlist))
-                goto out;
+                return -ENXIO;
 
         dev = &devlist[minor];
         if (!dev->fops)
-                goto out;
+                return -ENXIO;
 
         filp->f_op = dev->fops;
         if (dev->dev_info)
                 filp->f_mapping->backing_dev_info = dev->dev_info;
 
         if (dev->fops->open)
-                ret = dev->fops->open(inode, filp);
-        else
-                ret = 0;
-out:
-        unlock_kernel();
-        return ret;
+                return dev->fops->open(inode, filp);
+
+        return 0;
 }
 
 static const struct file_operations memory_fops = {