Revert "mei: vsc: Call wake_up() in the threaded IRQ handler"

This reverts commit 058a38a.

It's not necessary to avoid a spinlock, a sleeping lock on PREEMPT_RT, in
an interrupt handler as the interrupt handler itself would be called in a
process context if PREEMPT_RT is enabled. So revert the patch.

Cc: [email protected] # for 6.8
Signed-off-by: Sakari Ailus <[email protected]>
Acked-by: Tomas Winkler <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: Sakari Ailus

drivers/misc/mei/vsc-tp.c

@@ -419,15 +419,15 @@ static irqreturn_t vsc_tp_isr(int irq, void *data)
 
 	atomic_inc(&tp->assert_cnt);
 
+	wake_up(&tp->xfer_wait);
+
 	return IRQ_WAKE_THREAD;
 }
 
 static irqreturn_t vsc_tp_thread_isr(int irq, void *data)
 {
 	struct vsc_tp *tp = data;
 
-	wake_up(&tp->xfer_wait);
-
 	if (tp->event_notify)
 		tp->event_notify(tp->event_notify_context);