linux-kernel - [PATCH] iio: dummy_evgen: modify the return value check for irq_sim

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Message-Id: <20171127105449.27535-1-brgl@bgdev.pl>
Date:   Mon, 27 Nov 2017 11:54:49 +0100
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>
Cc:     linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bartosz Golaszewski <brgl@...ev.pl>
Subject: [PATCH] iio: dummy_evgen: modify the return value check for irq_sim_init()

As discussed with Marc Zyngier: irq_sim_init() and its devres variant
should return the base of the allocated interrupt range on success
rather than 0. This will be modified later - first, change the way
users handle the return value of these routines.

Signed-off-by: Bartosz Golaszewski <brgl@...ev.pl>
---
 drivers/iio/dummy/iio_dummy_evgen.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/dummy/iio_dummy_evgen.c b/drivers/iio/dummy/iio_dummy_evgen.c
index fe8884543da0..efd0005f59b4 100644
--- a/drivers/iio/dummy/iio_dummy_evgen.c
+++ b/drivers/iio/dummy/iio_dummy_evgen.c
@@ -56,7 +56,7 @@ static int iio_dummy_evgen_create(void)
 		return -ENOMEM;
 
 	ret = irq_sim_init(&iio_evgen->irq_sim, IIO_EVENTGEN_NO);
-	if (ret) {
+	if (ret < 0) {
 		kfree(iio_evgen);
 		return ret;
 	}
-- 
2.15.0