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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-02-24 08:27:54 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-02-24 08:27:54 +0100
commit1f836f5b10f2524d33efde47d2b694b861ecf319 (patch)
treeb52188b30d08bff1fe6376832753ca5e0a7e9d15 /ipc/sem.c
parenta27ad0f7da7ba3d4cf50a08ee5e2cb4b578a4a4c (diff)
parentf8788d86ab28f61f7b46eb6be375f8a726783636 (diff)
Merge 5.6-rc3 into char-misc-next
We need the char/misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'ipc/sem.c')
-rw-r--r--ipc/sem.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/ipc/sem.c b/ipc/sem.c
index 4f4303f32077..3687b71151b3 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -2384,11 +2384,9 @@ void exit_sem(struct task_struct *tsk)
ipc_assert_locked_object(&sma->sem_perm);
list_del(&un->list_id);
- /* we are the last process using this ulp, acquiring ulp->lock
- * isn't required. Besides that, we are also protected against
- * IPC_RMID as we hold sma->sem_perm lock now
- */
+ spin_lock(&ulp->lock);
list_del_rcu(&un->list_proc);
+ spin_unlock(&ulp->lock);
/* perform adjustments registered in un */
for (i = 0; i < sma->sem_nsems; i++) {