From: Nuno Sa nuno.sa@analog.com
stable inclusion from stable-5.10.50 commit 2e41116e6eb8796d51ca39ff93c7c570a187bcf4 bugzilla: 174522 https://gitee.com/openeuler/kernel/issues/I4DNFY
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ 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 Signed-off-by: Chen Jun chenjun102@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com Signed-off-by: Chen Jun chenjun102@huawei.com --- drivers/iio/imu/adis_buffer.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/drivers/iio/imu/adis_buffer.c b/drivers/iio/imu/adis_buffer.c index ac354321f63a..175af154e443 100644 --- a/drivers/iio/imu/adis_buffer.c +++ b/drivers/iio/imu/adis_buffer.c @@ -129,9 +129,6 @@ 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->state_lock); if (adis->current_page != 0) {