diff options
Diffstat (limited to 'drivers/staging/iio/ring_sw.c')
| -rw-r--r-- | drivers/staging/iio/ring_sw.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/staging/iio/ring_sw.c b/drivers/staging/iio/ring_sw.c index cf22c091668c..e95b6a4df161 100644 --- a/drivers/staging/iio/ring_sw.c +++ b/drivers/staging/iio/ring_sw.c @@ -14,14 +14,12 @@ #include <linux/workqueue.h> #include "ring_sw.h" -static inline int __iio_init_sw_ring_buffer(struct iio_sw_ring_buffer *ring, - int bytes_per_datum, int length) +static inline int __iio_allocate_sw_ring_buffer(struct iio_sw_ring_buffer *ring, + int bytes_per_datum, int length) { if ((length == 0) || (bytes_per_datum == 0)) return -EINVAL; - - __iio_init_ring_buffer(&ring->buf, bytes_per_datum, length); - spin_lock_init(&ring->use_lock); + __iio_update_ring_buffer(&ring->buf, bytes_per_datum, length); ring->data = kmalloc(length*ring->buf.bpd, GFP_KERNEL); ring->read_p = 0; ring->write_p = 0; @@ -30,6 +28,11 @@ static inline int __iio_init_sw_ring_buffer(struct iio_sw_ring_buffer *ring, return ring->data ? 0 : -ENOMEM; } +static inline void __iio_init_sw_ring_buffer(struct iio_sw_ring_buffer *ring) +{ + spin_lock_init(&ring->use_lock); +} + static inline void __iio_free_sw_ring_buffer(struct iio_sw_ring_buffer *ring) { kfree(ring->data); @@ -320,7 +323,8 @@ int iio_request_update_sw_rb(struct iio_ring_buffer *r) goto error_ret; } __iio_free_sw_ring_buffer(ring); - ret = __iio_init_sw_ring_buffer(ring, ring->buf.bpd, ring->buf.length); + ret = __iio_allocate_sw_ring_buffer(ring, ring->buf.bpd, + ring->buf.length); error_ret: spin_unlock(&ring->use_lock); return ret; @@ -411,8 +415,8 @@ struct iio_ring_buffer *iio_sw_rb_allocate(struct iio_dev *indio_dev) if (!ring) return 0; buf = &ring->buf; - iio_ring_buffer_init(buf, indio_dev); + __iio_init_sw_ring_buffer(ring); buf->dev.type = &iio_sw_ring_type; device_initialize(&buf->dev); buf->dev.parent = &indio_dev->dev; |