1 files changed, 2 insertions, 0 deletions

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 56b6ea32d2e7..65fe2a4f9824 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -1185,6 +1185,7 @@ rb_allocate_cpu_buffer(struct ring_buffer *buffer, int nr_pages, int cpu)
         INIT_WORK(&cpu_buffer->update_pages_work, update_pages_handler);
         init_completion(&cpu_buffer->update_done);
         init_irq_work(&cpu_buffer->irq_work.work, rb_wake_up_waiters);
+        init_waitqueue_head(&cpu_buffer->irq_work.waiters);
 
         bpage = kzalloc_node(ALIGN(sizeof(*bpage), cache_line_size()),
                             GFP_KERNEL, cpu_to_node(cpu));
@@ -1281,6 +1282,7 @@ struct ring_buffer *__ring_buffer_alloc(unsigned long size, unsigned flags,
         buffer->reader_lock_key = key;
 
         init_irq_work(&buffer->irq_work.work, rb_wake_up_waiters);
+        init_waitqueue_head(&buffer->irq_work.waiters);
 
         /* need at least two pages */
         if (nr_pages < 2)