summaryrefslogtreecommitdiffstats
path: root/kernel
diff options
context:
space:
mode:
authorThomas Gleixner <tglx@linutronix.de>2021-09-03 22:47:06 +0200
committerThomas Gleixner <tglx@linutronix.de>2021-09-03 23:00:22 +0200
commitd66e3edee7af87fe212df611ab9846b987a5070f (patch)
treee15ec9c5640106f8897dcbd9a2840925cbc03db7 /kernel
parentfutex: Avoid redundant task lookup (diff)
downloadlinux-d66e3edee7af87fe212df611ab9846b987a5070f.tar.xz
linux-d66e3edee7af87fe212df611ab9846b987a5070f.zip
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>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/futex.c3
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) {