From: Nuno Sa nuno.sa@analog.com
[ Upstream commit ab3df79782e7d8a27a58576c9b4e8c6c4879ad79 ]
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: 5eda3550a3cc1 ("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 --- drivers/iio/imu/adis16400.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/drivers/iio/imu/adis16400.c b/drivers/iio/imu/adis16400.c index 59e33302042c..afa9d26362da 100644 --- a/drivers/iio/imu/adis16400.c +++ b/drivers/iio/imu/adis16400.c @@ -651,9 +651,6 @@ 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;