Skip to contentSkip to conversation

patch "iio: adc: adi-axi-adc: Initialize state mutex" added to char-misc-linus

PATCH [email protected] 1 participant 1 message Sep 11

Subsystems (3)
lore
Share & tools
lore

[email protected]

author maintainer Applied
#0 lore raw

This is a note to let you know that I've just added the patch titled

iio: adc: adi-axi-adc: Initialize state mutex

to my char-misc git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
in the char-misc-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From 549b71ce050637dd32678371ad76c445a2f8c9aa Mon Sep 17 00:00:00 2001
From: Janani Sunil <[email protected]>
Date: Thu, 13 Aug 2026 15:56:56 +0200
Subject: iio: adc: adi-axi-adc: Initialize state mutex

The AXI ADC register access paths serialize transactions with st->lock, but probe does not initialize it. Initialize the mutex before registering the backend.

Fixes 7ecb8ee5c93b ("iio: adc: adi-axi-adc: support digital interface calibration")
---
 drivers/iio/adc/adi-axi-adc.c | 4 ++++
 1 file changed, 4 insertions(+)
drivers/iio/adc/adi-axi-adc.c +4 -0
index 589f03618ecf..fc7cc92b35f0 100644
@@ -714,6 +714,10 @@ static int adi_axi_adc_probe(struct platform_device *pdev)
 	if (!st)
 		return -ENOMEM;
 
+	ret = devm_mutex_init(dev, &st->lock);
+	if (ret)
+		return ret;
+
 	base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(base))
 		return PTR_ERR(base);
Signature · 1 line
2.55.0