summaryrefslogtreecommitdiff
path: root/drivers/android/binder.c
diff options
context:
space:
mode:
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-02-04 06:19:37 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-02-04 06:19:37 -0800
commited5551279c9100aff6adf337d809057a7532b6f7 (patch)
tree32835b919718c82f7a414041d7951971733c2dfe /drivers/android/binder.c
parentf1a27f081c1fa1eeebf38406e45f29636114470f (diff)
parent54be6c6c5ae8e0d93a6c4641cb7528eb0b6ba478 (diff)
Merge 6.8-rc3 into usb-next
We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/android/binder.c')
-rw-r--r--drivers/android/binder.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 8dd23b19e997..eca24f41556d 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -478,6 +478,16 @@ binder_enqueue_thread_work_ilocked(struct binder_thread *thread,
{
WARN_ON(!list_empty(&thread->waiting_thread_node));
binder_enqueue_work_ilocked(work, &thread->todo);
+
+ /* (e)poll-based threads require an explicit wakeup signal when
+ * queuing their own work; they rely on these events to consume
+ * messages without I/O block. Without it, threads risk waiting
+ * indefinitely without handling the work.
+ */
+ if (thread->looper & BINDER_LOOPER_STATE_POLL &&
+ thread->pid == current->pid && !thread->process_todo)
+ wake_up_interruptible_sync(&thread->wait);
+
thread->process_todo = true;
}