Messages in this thread Patch in this message |  | | From | Todd Kjos <> | Subject | [PATCH 02/37] binder: use group leader instead of open thread | Date | Thu, 29 Jun 2017 12:01:36 -0700 |
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The binder allocator assumes that the thread that called binder_open will never die for the lifetime of that proc. That thread is normally the group_leader, however it may not be. Use the group_leader instead of current.
Signed-off-by: Todd Kjos <tkjos@google.com> --- drivers/android/binder.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/android/binder.c b/drivers/android/binder.c index 157bd3e49ff4..9393924ae8e8 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -3460,8 +3460,8 @@ static int binder_open(struct inode *nodp, struct file *filp) proc = kzalloc(sizeof(*proc), GFP_KERNEL); if (proc == NULL) return -ENOMEM; - get_task_struct(current); - proc->tsk = current; + get_task_struct(current->group_leader); + proc->tsk = current->group_leader; INIT_LIST_HEAD(&proc->todo); init_waitqueue_head(&proc->wait); proc->default_priority = task_nice(current); -- 2.13.2.725.g09c95d1e9-goog
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