futex: Remove unused variable 'vpid' in futex_proxy_trylock_atomic()

The recent bug fix left the variable 'vpid' and an assignment to it around,
but the variable is otherwise unused.

clang dose not complain even with W=1, but gcc exposed this.

Fixes: 4f07ec0d76f2 ("futex: Prevent inconsistent state and exit race")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/kernel/futex.c b/kernel/futex.c
index a316dce..c15ad27 100644 (file)
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -2034,7 +2034,7 @@ futex_proxy_trylock_atomic(u32 __user *pifutex, struct futex_hash_bucket *hb1,
 {
        struct futex_q *top_waiter = NULL;
        u32 curval;
-       int ret, vpid;
+       int ret;
 
        if (get_futex_value_locked(&curval, pifutex))
                return -EFAULT;
@@ -2079,7 +2079,6 @@ futex_proxy_trylock_atomic(u32 __user *pifutex, struct futex_hash_bucket *hb1,
         * the user space lock can be acquired then PI state is attached to
         * the new owner (@top_waiter->task) when @set_waiters is true.
         */
-       vpid = task_pid_vnr(top_waiter->task);
        ret = futex_lock_pi_atomic(pifutex, hb2, key2, ps, top_waiter->task,
                                   exiting, set_waiters);
        if (ret == 1) {