8 files changed, 12 insertions, 37 deletions

diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 5cc7e2e9e415..45876427eb2d 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -215,22 +215,18 @@ copy_thread(unsigned long clone_flags,
 /*
  * sys_execve() executes a new program.
  */
-
 asmlinkage int sys_execve(char __user *name, char __user * __user *argv, char __user * __user *envp)
 {
         int error;
         char *filename;
         struct pt_regs *regs = (struct pt_regs *)((&name) + 6);
 
-        lock_kernel();
         filename = getname(name);
         error = PTR_ERR(filename);
         if (IS_ERR(filename))
-                goto out;
+                return error;
         error = do_execve(filename, argv, envp, regs);
         putname(filename);
- out:
-        unlock_kernel();
         return error;
 }
 
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index 904255938216..21d0fd19276d 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -255,15 +255,12 @@ asmlinkage int sys_execve(char __user *name, char __user * __user *argv, char __
         int error;
         char * filename;
 
-        lock_kernel();
         filename = getname(name);
         error = PTR_ERR(filename);
         if (IS_ERR(filename))
-                goto out;
+                return error;
         error = do_execve(filename, argv, envp, __frame);
         putname(filename);
- out:
-        unlock_kernel();
         return error;
 }
 
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index e2f33d0f9969..bd883faa983d 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -218,15 +218,12 @@ asmlinkage int sys_execve(char *name, char **argv, char **envp,int dummy,...)
         char * filename;
         struct pt_regs *regs = (struct pt_regs *) ((unsigned char *)&dummy-4);
 
-        lock_kernel();
         filename = getname(name);
         error = PTR_ERR(filename);
         if (IS_ERR(filename))
-                goto out;
+                return error;
         error = do_execve(filename, argv, envp, regs);
         putname(filename);
-out:
-        unlock_kernel();
         return error;
 }
 
diff --git a/arch/m68knommu/kernel/process.c b/arch/m68knommu/kernel/process.c
index 8f8f4abab2ff..5c9ecd427090 100644
--- a/arch/m68knommu/kernel/process.c
+++ b/arch/m68knommu/kernel/process.c
@@ -352,15 +352,12 @@ asmlinkage int sys_execve(char *name, char **argv, char **envp)
         char * filename;
         struct pt_regs *regs = (struct pt_regs *) &name;
 
-        lock_kernel();
         filename = getname(name);
         error = PTR_ERR(filename);
         if (IS_ERR(filename))
-                goto out;
+                return error;
         error = do_execve(filename, argv, envp, regs);
         putname(filename);
-out:
-        unlock_kernel();
         return error;
 }
 
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 892cce82867e..ec8a21df1142 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -275,16 +275,12 @@ asmlinkage long sys_execve(char __user *name,
         char *filename;
         int error;
 
-        lock_kernel();
-
         filename = getname(name);
         error = PTR_ERR(filename);
-        if (!IS_ERR(filename)) {
-                error = do_execve(filename, argv, envp, __frame);
-                putname(filename);
-        }
-
-        unlock_kernel();
+        if (IS_ERR(filename))
+                return error;
+        error = do_execve(filename, argv, envp, __frame);
+        putname(filename);
         return error;
 }
 
diff --git a/arch/s390/crypto/prng.c b/arch/s390/crypto/prng.c
index b49c00ce65e9..a3209906739e 100644
--- a/arch/s390/crypto/prng.c
+++ b/arch/s390/crypto/prng.c
@@ -6,7 +6,6 @@
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
-#include <linux/smp_lock.h>
 #include <linux/miscdevice.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
@@ -49,7 +48,6 @@ static unsigned char parm_block[32] = {
 
 static int prng_open(struct inode *inode, struct file *file)
 {
-        cycle_kernel_lock();
         return nonseekable_open(inode, file);
 }
 
diff --git a/arch/um/drivers/mmapper_kern.c b/arch/um/drivers/mmapper_kern.c
index eb240323c40a..d22f9e5c0eac 100644
--- a/arch/um/drivers/mmapper_kern.c
+++ b/arch/um/drivers/mmapper_kern.c
@@ -16,7 +16,7 @@
 #include <linux/miscdevice.h>
 #include <linux/module.h>
 #include <linux/mm.h>
-#include <linux/smp_lock.h>
+
 #include <asm/uaccess.h>
 #include "mem_user.h"
 
@@ -78,7 +78,6 @@ out:
 
 static int mmapper_open(struct inode *inode, struct file *file)
 {
-        cycle_kernel_lock();
         return 0;
 }
 
@@ -115,18 +114,16 @@ static int __init mmapper_init(void)
         v_buf = (char *) find_iomem("mmapper", &mmapper_size);
         if (mmapper_size == 0) {
                 printk(KERN_ERR "mmapper_init - find_iomem failed\n");
-                goto out;
+                return -ENODEV;
         }
+        p_buf = __pa(v_buf);
 
         err = misc_register(&mmapper_dev);
         if (err) {
                 printk(KERN_ERR "mmapper - misc_register failed, err = %d\n",
                        err);
-                goto out;
+                return err;;
         }
-
-        p_buf = __pa(v_buf);
-out:
         return 0;
 }
 
diff --git a/arch/um/drivers/random.c b/arch/um/drivers/random.c
index 6eabb7022a2d..4949044773ba 100644
--- a/arch/um/drivers/random.c
+++ b/arch/um/drivers/random.c
@@ -7,7 +7,6 @@
  * of the GNU General Public License, incorporated herein by reference.
  */
 #include <linux/sched.h>
-#include <linux/smp_lock.h>
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/interrupt.h>
@@ -34,8 +33,6 @@ static DECLARE_WAIT_QUEUE_HEAD(host_read_wait);
 
 static int rng_dev_open (struct inode *inode, struct file *filp)
 {
-        cycle_kernel_lock();
-
         /* enforce read-only access to this chrdev */
         if ((filp->f_mode & FMODE_READ) == 0)
                 return -EINVAL;