3 files changed, 18 insertions, 18 deletions

diff --git a/kernel/exit.c b/kernel/exit.c
index 20a406471525..f2b321bae440 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -561,29 +561,28 @@ void exit_files(struct task_struct *tsk)
 
 #ifdef CONFIG_MM_OWNER
 /*
- * Task p is exiting and it owned mm, lets find a new owner for it
+ * A task is exiting.   If it owned this mm, find a new owner for the mm.
  */
-static inline int
-mm_need_new_owner(struct mm_struct *mm, struct task_struct *p)
-{
-        /*
-         * If there are other users of the mm and the owner (us) is exiting
-         * we need to find a new owner to take on the responsibility.
-         */
-        if (atomic_read(&mm->mm_users) <= 1)
-                return 0;
-        if (mm->owner != p)
-                return 0;
-        return 1;
-}
-
 void mm_update_next_owner(struct mm_struct *mm)
 {
         struct task_struct *c, *g, *p = current;
 
 retry:
-        if (!mm_need_new_owner(mm, p))
+        /*
+         * If the exiting or execing task is not the owner, it's
+         * someone else's problem.
+         */
+        if (mm->owner != p)
                 return;
+        /*
+         * The current owner is exiting/execing and there are no other
+         * candidates.  Do not leave the mm pointing to a possibly
+         * freed task structure.
+         */
+        if (atomic_read(&mm->mm_users) <= 1) {
+                mm->owner = NULL;
+                return;
+        }
 
         read_lock(&tasklist_lock);
         /*
diff --git a/kernel/gcov/Kconfig b/kernel/gcov/Kconfig
index b8cadf70b1fb..5bf924d80b5c 100644
--- a/kernel/gcov/Kconfig
+++ b/kernel/gcov/Kconfig
@@ -2,7 +2,8 @@ menu "GCOV-based kernel profiling"
 
 config GCOV_KERNEL
         bool "Enable gcov-based kernel profiling"
-        depends on DEBUG_FS && CONSTRUCTORS
+        depends on DEBUG_FS
+        select CONSTRUCTORS
         default n
         ---help---
         This option enables gcov-based code profiling (e.g. for code coverage
diff --git a/kernel/signal.c b/kernel/signal.c
index 86c32b884f8e..ff7678603328 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2365,7 +2365,7 @@ int sigprocmask(int how, sigset_t *set, sigset_t *oldset)
 /**
  *  sys_rt_sigprocmask - change the list of currently blocked signals
  *  @how: whether to add, remove, or set signals
- *  @set: stores pending signals
+ *  @nset: stores pending signals
  *  @oset: previous value of signal mask if non-null
  *  @sigsetsize: size of sigset_t type
  */