perfcounters: fix init context lock

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 3 insertions, 1 deletions

diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 54fa2fa2c8e4..467cff545c30 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -116,7 +116,9 @@ extern struct group_info init_groups;
 #ifdef CONFIG_PERF_COUNTERS
 # define INIT_PERF_COUNTERS(tsk)                                        \
         .perf_counter_ctx.counter_list =                                \
-                LIST_HEAD_INIT(tsk.perf_counter_ctx.counter_list),
+                LIST_HEAD_INIT(tsk.perf_counter_ctx.counter_list),      \
+        .perf_counter_ctx.lock =                                        \
+                __SPIN_LOCK_UNLOCKED(tsk.perf_counter_ctx.lock),
 #else
 # define INIT_PERF_COUNTERS(tsk)
 #endif