1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/taskstats_kern.h b/include/linux/taskstats_kern.h
index a437ca0d226b..664224008fb2 100644
--- a/include/linux/taskstats_kern.h
+++ b/include/linux/taskstats_kern.h
@@ -32,6 +32,9 @@ static inline void taskstats_tgid_alloc(struct signal_struct *sig)
         struct taskstats *stats;
         unsigned long flags;
 
+        if (sig->stats != NULL)
+                return;
+
         stats = kmem_cache_zalloc(taskstats_cache, SLAB_KERNEL);
         if (!stats)
                 return;