Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 665ad8af authored by Javier Martin's avatar Javier Martin Committed by Mauro Carvalho Chehab
Browse files

[media] media: i.MX27 camera: return IRQ_NONE if no IRQ status bit is set 



If active_bufs() list is empty and no IRQ status bit is set
we are probably dealing with a share IRQ. Return IRQ_NONE in
this case.

Signed-off-by: default avatarJavier Martin <javier.martin@vista-silicon.com>
Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 8636ead8

drivers/media/video/mx2_camera.c

+5 −2
Original line number Diff line number Diff line
@@ -1292,7 +1292,11 @@ static irqreturn_t mx27_camera_emma_irq(int irq_emma, void *data) 
	if (list_empty(&pcdev->active_bufs)) {

		dev_warn(pcdev->dev, "%s: called while active list is empty\n",

			__func__);

		goto irq_ok;



		if (!status) {

			spin_unlock(&pcdev->lock);

			return IRQ_NONE;

		}

	}



	if (status & (1 << 7)) { /* overflow */
@@ -1323,7 +1327,6 @@ static irqreturn_t mx27_camera_emma_irq(int irq_emma, void *data) 
		mx27_camera_frame_done_emma(pcdev, 1, false);

	}



irq_ok:

	spin_unlock(&pcdev->lock);

	writel(status, pcdev->base_emma + PRP_INTRSTATUS);