From 462c8d27940d1d41f76091544245b0af11b64c81 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Wed, 4 Jul 2012 17:09:00 +0100 Subject: staging:iio:adis16400: Do not return error code in the interrupt handler The interrupt handler should only ever return one of the three irqreturn_t constants and not an error code. Also make sure to always call iio_trigger_notify_done before leaving the trigger handler. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- drivers/staging/iio/imu/adis16400_ring.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/staging/iio/imu/adis16400_ring.c b/drivers/staging/iio/imu/adis16400_ring.c index 809e2c4270d1..beec650ddbdb 100644 --- a/drivers/staging/iio/imu/adis16400_ring.c +++ b/drivers/staging/iio/imu/adis16400_ring.c @@ -125,20 +125,20 @@ static irqreturn_t adis16400_trigger_handler(int irq, void *p) data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL); if (data == NULL) { dev_err(&st->us->dev, "memory alloc failed in ring bh"); - return -ENOMEM; + goto done; } if (scan_count) { if (st->variant->flags & ADIS16400_NO_BURST) { ret = adis16350_spi_read_all(indio_dev, st->rx); if (ret < 0) - goto err; + goto done; for (; i < scan_count; i++) data[i] = *(s16 *)(st->rx + i*2); } else { ret = adis16400_spi_read_burst(indio_dev, st->rx); if (ret < 0) - goto err; + goto done; for (; i < scan_count; i++) { j = __ffs(mask); mask &= ~(1 << j); @@ -152,14 +152,11 @@ static irqreturn_t adis16400_trigger_handler(int irq, void *p) *((s64 *)(data + ((i + 3)/4)*4)) = pf->timestamp; ring->access->store_to(indio_dev->buffer, (u8 *) data, pf->timestamp); +done: + kfree(data); iio_trigger_notify_done(indio_dev->trig); - kfree(data); return IRQ_HANDLED; - -err: - kfree(data); - return ret; } void adis16400_unconfigure_ring(struct iio_dev *indio_dev) -- cgit v1.2.3