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Message-ID: <20221102141843.122182-8-ramona.bolboaca@analog.com>
Date: Wed, 2 Nov 2022 16:18:42 +0200
From: Ramona Bolboaca <ramona.bolboaca@...log.com>
To: <jic23@...nel.org>, <linux-iio@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
CC: Ramona Bolboaca <ramona.bolboaca@...log.com>
Subject: [PATCH 7/8] staging: iio: accel: adis16240: Fix deadlock in probe
Use __adis_initial_startup instead of adis_initial_startup to
avoid deadlock.
When using adis_initial_startup mutex_lock is called twice,
without releasing it (once inside adis_initial_startup and
once inside adis_enable_irq).
Fixes: 100bfa38c8cb ("iio: imu: adis[16480]: group RW into a single lock in adis_enable_irq()")
Signed-off-by: Ramona Bolboaca <ramona.bolboaca@...log.com>
---
drivers/staging/iio/accel/adis16240.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/iio/accel/adis16240.c b/drivers/staging/iio/accel/adis16240.c
index bca857eef92e..337492785f04 100644
--- a/drivers/staging/iio/accel/adis16240.c
+++ b/drivers/staging/iio/accel/adis16240.c
@@ -414,7 +414,7 @@ static int adis16240_probe(struct spi_device *spi)
return ret;
/* Get the device into a sane initial state */
- ret = adis_initial_startup(st);
+ ret = __adis_initial_startup(st);
if (ret)
return ret;
--
2.25.1
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