1 files changed, 5 insertions, 15 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 144326b7af50..e6c04d462ab2 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -815,11 +815,8 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
 {
         struct signal_struct *sig;
 
-        if (clone_flags & CLONE_THREAD) {
-                atomic_inc(&current->signal->count);
-                atomic_inc(&current->signal->live);
+        if (clone_flags & CLONE_THREAD)
                 return 0;
-        }
 
         sig = kmem_cache_alloc(signal_cachep, GFP_KERNEL);
         tsk->signal = sig;
@@ -877,16 +874,6 @@ void __cleanup_signal(struct signal_struct *sig)
         kmem_cache_free(signal_cachep, sig);
 }
 
-static void cleanup_signal(struct task_struct *tsk)
-{
-        struct signal_struct *sig = tsk->signal;
-
-        atomic_dec(&sig->live);
-
-        if (atomic_dec_and_test(&sig->count))
-                __cleanup_signal(sig);
-}
-
 static void copy_flags(unsigned long clone_flags, struct task_struct *p)
 {
         unsigned long new_flags = p->flags;
@@ -1239,6 +1226,8 @@ static struct task_struct *copy_process(unsigned long clone_flags,
         }
 
         if (clone_flags & CLONE_THREAD) {
+                atomic_inc(&current->signal->count);
+                atomic_inc(&current->signal->live);
                 p->group_leader = current->group_leader;
                 list_add_tail_rcu(&p->thread_group, &p->group_leader->thread_group);
         }
@@ -1282,7 +1271,8 @@ bad_fork_cleanup_mm:
         if (p->mm)
                 mmput(p->mm);
 bad_fork_cleanup_signal:
-        cleanup_signal(p);
+        if (!(clone_flags & CLONE_THREAD))
+                __cleanup_signal(p->signal);
 bad_fork_cleanup_sighand:
         __cleanup_sighand(p->sighand);
 bad_fork_cleanup_fs: