media: staging: rkisp1: stats: replace spin_lock_irqsave with spin_lock_irq

The function 'rkisp1_stats_vb2_stop_streaming' runs in user context
therefore it is enough to use spin_lock_irq
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/staging/media/rkisp1/rkisp1-stats.c

@@ -152,13 +152,12 @@ static void rkisp1_stats_vb2_stop_streaming(struct vb2_queue *vq)
 {
 	struct rkisp1_stats *stats = vq->drv_priv;
 	struct rkisp1_buffer *buf;
-	unsigned long flags;
 	unsigned int i;
 
 	/* Make sure no new work queued in isr before draining wq */
-	spin_lock_irqsave(&stats->irq_lock, flags);
+	spin_lock_irq(&stats->irq_lock);
 	stats->is_streaming = false;
-	spin_unlock_irqrestore(&stats->irq_lock, flags);
+	spin_unlock_irq(&stats->irq_lock);
 
 	drain_workqueue(stats->readout_wq);