3 files changed, 4 insertions, 7 deletions

diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
index fdbcc9fd6d31..5eb83c3ca20d 100644
--- a/drivers/char/nvram.c
+++ b/drivers/char/nvram.c
@@ -336,14 +336,12 @@ static int nvram_ioctl(struct inode *inode, struct file *file,
 
 static int nvram_open(struct inode *inode, struct file *file)
 {
-        lock_kernel();
         spin_lock(&nvram_state_lock);
 
         if ((nvram_open_cnt && (file->f_flags & O_EXCL)) ||
             (nvram_open_mode & NVRAM_EXCL) ||
             ((file->f_mode & FMODE_WRITE) && (nvram_open_mode & NVRAM_WRITE))) {
                 spin_unlock(&nvram_state_lock);
-                unlock_kernel();
                 return -EBUSY;
         }
 
@@ -354,7 +352,6 @@ static int nvram_open(struct inode *inode, struct file *file)
         nvram_open_cnt++;
 
         spin_unlock(&nvram_state_lock);
-        unlock_kernel();
 
         return 0;
 }
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 451481c082b5..d13492df57a1 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -90,7 +90,7 @@ struct msi_desc;
  * @startup:            start up the interrupt (defaults to ->enable if NULL)
  * @shutdown:           shut down the interrupt (defaults to ->disable if NULL)
  * @enable:             enable the interrupt (defaults to chip->unmask if NULL)
- * @disable:            disable the interrupt (defaults to chip->mask if NULL)
+ * @disable:            disable the interrupt
  * @ack:                start of a new interrupt
  * @mask:               mask an interrupt source
  * @mask_ack:           ack and mask an interrupt source
diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
index 235716556bf1..d49afb2395e5 100644
--- a/kernel/futex_compat.c
+++ b/kernel/futex_compat.c
@@ -146,7 +146,7 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
                 struct task_struct *p;
 
                 ret = -ESRCH;
-                read_lock(&tasklist_lock);
+                rcu_read_lock();
                 p = find_task_by_vpid(pid);
                 if (!p)
                         goto err_unlock;
@@ -157,7 +157,7 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
                     !capable(CAP_SYS_PTRACE))
                         goto err_unlock;
                 head = p->compat_robust_list;
-                read_unlock(&tasklist_lock);
+                rcu_read_unlock();
         }
 
         if (put_user(sizeof(*head), len_ptr))
@@ -165,7 +165,7 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
         return put_user(ptr_to_compat(head), head_ptr);
 
 err_unlock:
-        read_unlock(&tasklist_lock);
+        rcu_read_unlock();
 
         return ret;
 }