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-rw-r--r--kernel/sched.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 4a3cb061415..577f160131b 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4405,6 +4405,16 @@ do_wait_for_common(struct completion *x, long timeout, int state)
spin_unlock_irq(&x->wait.lock);
timeout = schedule_timeout(timeout);
spin_lock_irq(&x->wait.lock);
+
+ /*
+ * If the completion has arrived meanwhile
+ * then return 1 jiffy time left:
+ */
+ if (x->done && !timeout) {
+ timeout = 1;
+ break;
+ }
+
if (!timeout) {
__remove_wait_queue(&x->wait, &wait);
return timeout;