Merge branch 'tracing/core' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into tracing/core

1 files changed, 3 insertions, 1 deletions

diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index 1a6a453b7efb..9489a0a9b1be 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -597,7 +597,9 @@ void syscall_regfunc(void)
         if (!sys_tracepoint_refcount) {
                 read_lock_irqsave(&tasklist_lock, flags);
                 do_each_thread(g, t) {
-                        set_tsk_thread_flag(t, TIF_SYSCALL_TRACEPOINT);
+                        /* Skip kernel threads. */
+                        if (t->mm)
+                                set_tsk_thread_flag(t, TIF_SYSCALL_TRACEPOINT);
                 } while_each_thread(g, t);
                 read_unlock_irqrestore(&tasklist_lock, flags);
         }