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Message-Id: <20240430-fix-broad-v1-1-cf3b81bf97ff@chromium.org>
Date: Tue, 30 Apr 2024 07:51:26 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Mauro Carvalho Chehab <mchehab@...nel.org>,
Florian Fainelli <florian.fainelli@...adcom.com>,
Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
Ray Jui <rjui@...adcom.com>, Scott Branden <sbranden@...adcom.com>
Cc: linux-media@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Hans Verkuil <hverkuil@...all.nl>, Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH 1/3] media: bcm2835-unicam: Fix error handling for
platform_get_irq
platform_get_irq() cannot return the value 0.
If it returns -EPROBE_DEFER, we need to populate the error code upwards
to retry probing once the irq handler is ready.
Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
drivers/media/platform/broadcom/bcm2835-unicam.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/broadcom/bcm2835-unicam.c b/drivers/media/platform/broadcom/bcm2835-unicam.c
index bd2bbb53070e..2a3a27ac70ba 100644
--- a/drivers/media/platform/broadcom/bcm2835-unicam.c
+++ b/drivers/media/platform/broadcom/bcm2835-unicam.c
@@ -2660,9 +2660,10 @@ static int unicam_probe(struct platform_device *pdev)
}
ret = platform_get_irq(pdev, 0);
- if (ret <= 0) {
+ if (ret < 0) {
dev_err(&pdev->dev, "No IRQ resource\n");
- ret = -EINVAL;
+ if (ret != -EPROBE_DEFER)
+ ret = -EINVAL;
goto err_unicam_put;
}
--
2.44.0.769.g3c40516874-goog
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