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iio: adis16400: do not return ints in irq handlers

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[ Upstream commit ab3df79782 ]

On an IRQ handler we should not return normal error codes as 'irqreturn_t'
is expected.

Not necessary to apply to stable as the original check cannot fail and
as such the bug cannot actually occur.

Fixes: 5eda3550a3 ("staging:iio:adis16400: Preallocate transfer message")
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210422101911.135630-3-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Nuno Sa
2021-04-22 12:19:04 +02:00
committed by Greg Kroah-Hartman
parent 2e41116e6e
commit 92efd6396e
1 changed files with 0 additions and 3 deletions
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3
drivers/iio/imu/adis16400.c
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@@ -647,9 +647,6 @@ static irqreturn_t adis16400_trigger_handler(int irq, void *p)
void *buffer;
int ret;
if (!adis->buffer)
return -ENOMEM;
if (!(st->variant->flags & ADIS16400_NO_BURST) &&
st->adis.spi->max_speed_hz > ADIS16400_SPI_BURST) {
st->adis.spi->max_speed_hz = ADIS16400_SPI_BURST;