[PATCH 5.2 009/124] media: stm32-dcmi: fix irq = 0 case

From: Greg Kroah-Hartman
Date: Thu Sep 19 2019 - 18:07:34 EST


From: Fabien Dessenne <fabien.dessenne@xxxxxx>

commit dbb9fcc8c2d8d4ea1104f51d4947a8a8199a2cb5 upstream.

Manage the irq = 0 case, where we shall return an error.

Fixes: b5b5a27bee58 ("media: stm32-dcmi: return appropriate error codes during probe")

Signed-off-by: Fabien Dessenne <fabien.dessenne@xxxxxx>
Reported-by: Pavel Machek <pavel@xxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/media/platform/stm32/stm32-dcmi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/media/platform/stm32/stm32-dcmi.c
+++ b/drivers/media/platform/stm32/stm32-dcmi.c
@@ -1702,7 +1702,7 @@ static int dcmi_probe(struct platform_de
if (irq <= 0) {
if (irq != -EPROBE_DEFER)
dev_err(&pdev->dev, "Could not get irq\n");
- return irq;
+ return irq ? irq : -ENXIO;
}

dcmi->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);