[PATCH v3 03/14] iio: adc: adi-axi-adc: Initialize state mutex
Janani Sunil <[email protected]>
| Newsgroups | org.kernel.vger.linux-gpio,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-doc,org.kernel.vger.linux-iio,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
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")
Signed-off-by: Janani Sunil <[email protected]>
---
drivers/iio/adc/adi-axi-adc.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/iio/adc/adi-axi-adc.c b/drivers/iio/adc/adi-axi-adc.c
index 26b9c75bd4d8..b5e59b1871b6 100644
--- a/drivers/iio/adc/adi-axi-adc.c
+++ b/drivers/iio/adc/adi-axi-adc.c
@@ -684,6 +684,10 @@ 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);
--
2.43.0