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authorNuno Sa <nuno.sa@analog.com>2021-04-22 13:19:03 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-07-20 17:15:53 +0300
commitbf349ef02dad548b93e050e90da616b7ed7a59bd (patch)
tree6700769323818bc7d05efe95e2b2db1d5c5d7e43 /drivers/iio
parent0d8a385de3749c77767cd0d9fc8a4427dc87fffa (diff)
downloadlinux-bf349ef02dad548b93e050e90da616b7ed7a59bd.tar.xz
iio: adis_buffer: do not return ints in irq handlers
[ Upstream commit d877539ad8e8fdde9af69887055fec6402be1a13 ] On an IRQ handler we should not return normal error codes as 'irqreturn_t' is expected. Not necessarily stable material as the old check cannot fail, so it's a bug we can not hit. Fixes: ccd2b52f4ac69 ("staging:iio: Add common ADIS library") Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com> Signed-off-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20210422101911.135630-2-nuno.sa@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/imu/adis_buffer.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/iio/imu/adis_buffer.c b/drivers/iio/imu/adis_buffer.c
index e59d0438de73..bde68462b5ed 100644
--- a/drivers/iio/imu/adis_buffer.c
+++ b/drivers/iio/imu/adis_buffer.c
@@ -83,9 +83,6 @@ static irqreturn_t adis_trigger_handler(int irq, void *p)
struct adis *adis = iio_device_get_drvdata(indio_dev);
int ret;
- if (!adis->buffer)
- return -ENOMEM;
-
if (adis->data->has_paging) {
mutex_lock(&adis->txrx_lock);
if (adis->current_page != 0) {