linux-kernel - [PATCH] spi: update modalias_show after of_device_uevent

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Date:   Thu, 22 Jul 2021 15:48:45 +0200
From:   Andreas Schwab <schwab@...e.de>
To:     Marco Felsch <m.felsch@...gutronix.de>
Cc:     broonie@...nel.org, linux-spi@...r.kernel.org,
        kernel@...gutronix.de, linux-kernel@...r.kernel.org
Subject: [PATCH] spi: update modalias_show after of_device_uevent_modalias
 support

Commit 3ce6c9e2617e ("spi: add of_device_uevent_modalias support") is
incomplete, as it didn't update the modalias_show function to generate the
of: modalias string if available.

Fixes: 3ce6c9e2617e ("spi: add of_device_uevent_modalias support")
Signed-off-by: Andreas Schwab <schwab@...e.de>
---
 drivers/spi/spi.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index c99181165321..e4dc593b1f32 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -58,6 +58,10 @@ modalias_show(struct device *dev, struct device_attribute *a, char *buf)
 	const struct spi_device	*spi = to_spi_device(dev);
 	int len;
 
+	len = of_device_modalias(dev, buf, PAGE_SIZE);
+	if (len != -ENODEV)
+		return len;
+
 	len = acpi_device_modalias(dev, buf, PAGE_SIZE - 1);
 	if (len != -ENODEV)
 		return len;
-- 
2.32.0


-- 
Andreas Schwab, SUSE Labs, schwab@...e.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."