futex: Remove pointless put_pi_state calls in requeue()

In the error handling cases we neither have pi_state nor a reference
to it. Remove the pointless code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Darren Hart <darren@dvhart.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Bhuvanesh_Surachari@mentor.com
Cc: Andy Lowe <Andy_Lowe@mentor.com>
Link: http://lkml.kernel.org/r/20151219200607.432780944@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/kernel/futex.c b/kernel/futex.c
index 20c4683..dcec018 100644 (file)
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1735,9 +1735,9 @@ retry_private:
                case 0:
                        /* We hold a reference on the pi state. */
                        break;
+
+                       /* If the above failed, then pi_state is NULL */
                case -EFAULT:
-                       put_pi_state(pi_state);
-                       pi_state = NULL;
                        double_unlock_hb(hb1, hb2);
                        hb_waiters_dec(hb2);
                        put_futex_key(&key2);
@@ -1753,8 +1753,6 @@ retry_private:
                         *   exit to complete.
                         * - The user space value changed.
                         */
-                       put_pi_state(pi_state);
-                       pi_state = NULL;
                        double_unlock_hb(hb1, hb2);
                        hb_waiters_dec(hb2);
                        put_futex_key(&key2);