linux-kernel - [PATCH] iio: trigger: Fix condition for own trigger

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Date: Fri, 14 Jun 2024 11:36:58 -0300
From: João Paulo Gonçalves <jpaulo.silvagoncalves@...il.com>
To: Jonathan Cameron <jic23@...nel.org>,
	Lars-Peter Clausen <lars@...afoo.de>
Cc: João Paulo Gonçalves <joao.goncalves@...adex.com>,
	linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Matti Vaittinen <mazziesaccount@...il.com>,
	stable@...r.kernel.org
Subject: [PATCH] iio: trigger: Fix condition for own trigger

From: João Paulo Gonçalves <joao.goncalves@...adex.com>

The condition for checking if triggers belong to the same IIO device to
set attached_own_device is currently inverted, causing
iio_trigger_using_own() to return an incorrect value. Fix it by testing
for the correct return value of iio_validate_own_trigger().

Cc: stable@...r.kernel.org
Fixes: 517985ebc531 ("iio: trigger: Add simple trigger_validation helper")
Signed-off-by: João Paulo Gonçalves <joao.goncalves@...adex.com>
---
 drivers/iio/industrialio-trigger.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
index 16de57846bd9..2e84776f4fbd 100644
--- a/drivers/iio/industrialio-trigger.c
+++ b/drivers/iio/industrialio-trigger.c
@@ -315,7 +315,7 @@ int iio_trigger_attach_poll_func(struct iio_trigger *trig,
 	 * this is the case if the IIO device and the trigger device share the
 	 * same parent device.
 	 */
-	if (iio_validate_own_trigger(pf->indio_dev, trig))
+	if (!iio_validate_own_trigger(pf->indio_dev, trig))
 		trig->attached_own_device = true;

 	return ret;
--
2.34.1