[PATCH v2 1/2] Revert "mei: vsc: Call wake_up() in the threaded IRQ handler"

[Wentong Wu]

From: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>

This reverts commit 058a38acba15fd8e7b262ec6e17c4204cb15f984.

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: stable@xxxxxxxxxxxxxxx # for 6.8
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
 drivers/misc/mei/vsc-tp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/mei/vsc-tp.c b/drivers/misc/mei/vsc-tp.c
index ecfb70cd057c..968a92a7425d 100644
--- a/drivers/misc/mei/vsc-tp.c
+++ b/drivers/misc/mei/vsc-tp.c
@@ -419,6 +419,8 @@ static irqreturn_t vsc_tp_isr(int irq, void *data)
 
 	atomic_inc(&tp->assert_cnt);
 
+	wake_up(&tp->xfer_wait);
+
 	return IRQ_WAKE_THREAD;
 }
 
@@ -426,8 +428,6 @@ 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);
 
-- 
2.34.1