diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2021-09-03 22:47:06 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2021-09-03 23:00:22 +0200 |
| commit | d66e3edee7af87fe212df611ab9846b987a5070f (patch) | |
| tree | e15ec9c5640106f8897dcbd9a2840925cbc03db7 | |
| parent | 340576590dac4bb58d532a8ad5bfa806d8ab473c (diff) | |
| download | linux-d66e3edee7af87fe212df611ab9846b987a5070f.tar.gz linux-d66e3edee7af87fe212df611ab9846b987a5070f.tar.xz | |
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>
| -rw-r--r-- | kernel/futex.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/futex.c b/kernel/futex.c index a316dce74c3d..c15ad276fd15 100644 --- 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) { |