From: Alexandru Ardelean <alexandru.ardelean@analog.com>
To: <linux-kernel@vger.kernel.org>, <linux-iio@vger.kernel.org>
Cc: <lars@metafoo.de>, <Michael.Hennerich@analog.com>,
<jic23@kernel.org>, <nuno.sa@analog.com>,
<dragos.bogdan@analog.com>, <rafael@kernel.org>,
<gregkh@linuxfoundation.org>,
Alexandru Ardelean <alexandru.ardelean@analog.com>
Subject: [PATCH v3 03/11] iio: core-trigger: make iio_device_register_trigger_consumer() an int return
Date: Mon, 1 Feb 2021 16:50:57 +0200 [thread overview]
Message-ID: <20210201145105.20459-4-alexandru.ardelean@analog.com> (raw)
In-Reply-To: <20210201145105.20459-1-alexandru.ardelean@analog.com>
Oddly enough the noop function is an int-return. This one seems to be void.
This change converts it to int, because we want to change how groups are
registered. With that change this function could error out with -ENOMEM.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
---
drivers/iio/iio_core_trigger.h | 4 +++-
drivers/iio/industrialio-trigger.c | 4 +++-
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/iio/iio_core_trigger.h b/drivers/iio/iio_core_trigger.h
index 374816bc3e73..e1a56824e07f 100644
--- a/drivers/iio/iio_core_trigger.h
+++ b/drivers/iio/iio_core_trigger.h
@@ -9,8 +9,10 @@
/**
* iio_device_register_trigger_consumer() - set up an iio_dev to use triggers
* @indio_dev: iio_dev associated with the device that will consume the trigger
+ *
+ * Return 0 if successful, negative otherwise
**/
-void iio_device_register_trigger_consumer(struct iio_dev *indio_dev);
+int iio_device_register_trigger_consumer(struct iio_dev *indio_dev);
/**
* iio_device_unregister_trigger_consumer() - reverse the registration process
diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
index ea3c9859b258..438d5012e8b8 100644
--- a/drivers/iio/industrialio-trigger.c
+++ b/drivers/iio/industrialio-trigger.c
@@ -692,10 +692,12 @@ int iio_trigger_validate_own_device(struct iio_trigger *trig,
}
EXPORT_SYMBOL(iio_trigger_validate_own_device);
-void iio_device_register_trigger_consumer(struct iio_dev *indio_dev)
+int iio_device_register_trigger_consumer(struct iio_dev *indio_dev)
{
indio_dev->groups[indio_dev->groupcounter++] =
&iio_trigger_consumer_attr_group;
+
+ return 0;
}
void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev)
--
2.17.1
next prev parent reply other threads:[~2021-02-01 15:31 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-01 14:50 [PATCH v3 00/11] iio: core,buffer: add support for multiple IIO buffers per IIO device Alexandru Ardelean
2021-02-01 14:50 ` [PATCH v3 01/11] docs: ioctl-number.rst: reserve IIO subsystem ioctl() space Alexandru Ardelean
2021-02-04 17:06 ` Jonathan Cameron
2021-02-05 7:08 ` Alexandru Ardelean
2021-02-01 14:50 ` [PATCH v3 02/11] iio: core: register chardev only if needed Alexandru Ardelean
2021-02-04 17:17 ` Jonathan Cameron
2021-02-01 14:50 ` Alexandru Ardelean [this message]
2021-02-01 14:50 ` [PATCH v3 04/11] iio: core: rework iio device group creation Alexandru Ardelean
2021-02-04 17:32 ` Jonathan Cameron
2021-02-05 7:32 ` Alexandru Ardelean
2021-02-01 14:50 ` [PATCH v3 05/11] iio: buffer: group attr count and attr alloc Alexandru Ardelean
2021-02-04 17:49 ` Jonathan Cameron
2021-02-05 8:12 ` Alexandru Ardelean
2021-02-05 12:33 ` Jonathan Cameron
2021-02-01 14:51 ` [PATCH v3 06/11] iio: core: merge buffer/ & scan_elements/ attributes Alexandru Ardelean
2021-02-01 20:02 ` kernel test robot
2021-02-02 6:07 ` Dan Carpenter
2021-02-03 10:02 ` Andy Shevchenko
2021-02-04 13:41 ` Alexandru Ardelean
2021-02-05 11:07 ` Andy Shevchenko
2021-02-01 14:51 ` [PATCH v3 07/11] iio: add reference to iio buffer on iio_dev_attr Alexandru Ardelean
2021-02-04 18:09 ` Jonathan Cameron
2021-02-05 8:26 ` Alexandru Ardelean
2021-02-01 14:51 ` [PATCH v3 08/11] iio: buffer: wrap all buffer attributes into iio_dev_attr Alexandru Ardelean
2021-02-04 18:23 ` Jonathan Cameron
2021-02-05 9:17 ` Alexandru Ardelean
2021-02-05 12:39 ` Jonathan Cameron
2021-02-05 12:57 ` Alexandru Ardelean
2021-02-06 14:46 ` Jonathan Cameron
2021-02-01 14:51 ` [PATCH v3 09/11] iio: core: wrap iio device & buffer into struct for character devices Alexandru Ardelean
2021-02-01 14:51 ` [PATCH v3 10/11] iio: buffer: introduce support for attaching more IIO buffers Alexandru Ardelean
2021-02-04 18:34 ` Jonathan Cameron
2021-02-05 9:32 ` Alexandru Ardelean
2021-02-01 14:51 ` [PATCH v3 11/11] iio: buffer: add ioctl() to support opening extra buffers for IIO device Alexandru Ardelean
2021-02-04 19:00 ` Jonathan Cameron
2021-02-05 9:51 ` Alexandru Ardelean
2021-02-05 12:44 ` Jonathan Cameron
2021-02-05 12:48 ` Alexandru Ardelean
2021-02-06 14:48 ` Jonathan Cameron
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