From: Tomas Borquez <tomasborquez13@gmail.com>
To: Jonathan Cameron <jic23@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Lars-Peter Clausen <lars@metafoo.de>,
Michael Hennerich <Michael.Hennerich@analog.com>
Cc: "David Lechner" <dlechner@baylibre.com>,
"Nuno Sá" <nuno.sa@analog.com>,
"Andy Shevchenko" <andy@kernel.org>,
linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org,
linux-staging@lists.linux.dev,
"Tomas Borquez" <tomasborquez13@gmail.com>
Subject: [PATCH v2 3/6] staging: iio: ad9832: convert to devm_mutex_init()
Date: Tue, 30 Dec 2025 17:34:56 -0300 [thread overview]
Message-ID: <20251230203459.28935-4-tomasborquez13@gmail.com> (raw)
In-Reply-To: <20251230203459.28935-1-tomasborquez13@gmail.com>
Use devm_mutex_init() for automatic resource cleanup when the device
is removed or probe fails.
Signed-off-by: Tomas Borquez <tomasborquez13@gmail.com>
---
drivers/staging/iio/frequency/ad9832.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c
index 35d8d51d5c2b..4bb203a67046 100644
--- a/drivers/staging/iio/frequency/ad9832.c
+++ b/drivers/staging/iio/frequency/ad9832.c
@@ -310,7 +310,9 @@ static int ad9832_probe(struct spi_device *spi)
return dev_err_probe(dev, PTR_ERR(st->mclk), "failed to enable MCLK\n");
st->spi = spi;
- mutex_init(&st->lock);
+ ret = devm_mutex_init(&spi->dev, &st->lock);
+ if (ret)
+ return dev_err_probe(dev, ret, "failed to initialize mutex\n");
indio_dev->name = spi_get_device_id(spi)->name;
indio_dev->info = &ad9832_info;
--
2.43.0
next prev parent reply other threads:[~2025-12-30 20:35 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-30 20:34 [PATCH v2 0/6] staging: ad9832: driver cleanup Tomas Borquez
2025-12-30 20:34 ` [PATCH v2 1/6] staging: iio: ad9832: cleanup dev_err_probe() Tomas Borquez
2025-12-30 22:47 ` Andy Shevchenko
2025-12-31 18:02 ` Jonathan Cameron
2025-12-30 20:34 ` [PATCH v2 2/6] staging: iio: ad9832: convert to guard(mutex) Tomas Borquez
2025-12-30 22:50 ` Andy Shevchenko
2025-12-31 17:01 ` Tomas Borquez
2025-12-30 20:34 ` Tomas Borquez [this message]
2026-01-14 1:34 ` [PATCH v2 3/6] staging: iio: ad9832: convert to devm_mutex_init() Marcelo Schmitt
2025-12-30 20:34 ` [PATCH v2 4/6] staging: iio: ad9832: remove dds.h dependency Tomas Borquez
2025-12-30 22:46 ` Andy Shevchenko
2026-01-04 5:25 ` Tomas Borquez
2026-01-05 15:52 ` Andy Shevchenko
2025-12-31 18:09 ` Jonathan Cameron
2025-12-31 18:11 ` Jonathan Cameron
2026-01-04 5:38 ` Tomas Borquez
2026-01-11 12:13 ` Jonathan Cameron
2025-12-30 20:34 ` [PATCH v2 5/6] staging: iio: ad9832: convert to iio channels and ext_info attrs Tomas Borquez
2025-12-30 22:55 ` Andy Shevchenko
2025-12-31 17:08 ` Tomas Borquez
2026-01-11 12:20 ` Jonathan Cameron
2025-12-31 18:21 ` Jonathan Cameron
2025-12-30 20:34 ` [PATCH v2 6/6] staging: iio: ad9832: add sysfs documentation Tomas Borquez
2025-12-30 22:57 ` Andy Shevchenko
2025-12-31 18:35 ` Jonathan Cameron
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