linux-kernel - [PATCH AUTOSEL 4.19 13/29] media: stm32-dcmi: fix irq = 0 case

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Message-Id: <20190829105009.2265-13-sashal@kernel.org>
Date:   Thu, 29 Aug 2019 06:49:53 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Fabien Dessenne <fabien.dessenne@...com>,
        Pavel Machek <pavel@....cz>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Sasha Levin <sashal@...nel.org>, linux-media@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 13/29] media: stm32-dcmi: fix irq = 0 case

From: Fabien Dessenne <fabien.dessenne@...com>

[ Upstream commit dbb9fcc8c2d8d4ea1104f51d4947a8a8199a2cb5 ]

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@...com>
Reported-by: Pavel Machek <pavel@....cz>
Acked-by: Pavel Machek <pavel@....cz>
Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/media/platform/stm32/stm32-dcmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/stm32/stm32-dcmi.c b/drivers/media/platform/stm32/stm32-dcmi.c
index d386822658922..1d9c028e52cba 100644
--- a/drivers/media/platform/stm32/stm32-dcmi.c
+++ b/drivers/media/platform/stm32/stm32-dcmi.c
@@ -1681,7 +1681,7 @@ static int dcmi_probe(struct platform_device *pdev)
 	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);
-- 
2.20.1