diff options
author | Jonathan Cameron <jic23@cam.ac.uk> | 2010-05-04 14:43:08 +0100 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-11 11:36:06 -0700 |
commit | 758d988ce089ac7345bc03a9116b5ebf10dbfa9e (patch) | |
tree | 6ed5c5e8e1b0ffbc1698b7bdee8d3bb90391bbd3 /drivers/staging/iio/industrialio-ring.c | |
parent | 2a6a255494605f5906222687fba5b45c03594d71 (diff) | |
download | op-kernel-dev-758d988ce089ac7345bc03a9116b5ebf10dbfa9e.zip op-kernel-dev-758d988ce089ac7345bc03a9116b5ebf10dbfa9e.tar.gz |
staging:iio: Remove naming via IDR's where no longer necessary under new abi.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/iio/industrialio-ring.c')
-rw-r--r-- | drivers/staging/iio/industrialio-ring.c | 48 |
1 files changed, 12 insertions, 36 deletions
diff --git a/drivers/staging/iio/industrialio-ring.c b/drivers/staging/iio/industrialio-ring.c index 0f19bd1..fc27d22 100644 --- a/drivers/staging/iio/industrialio-ring.c +++ b/drivers/staging/iio/industrialio-ring.c @@ -20,19 +20,11 @@ #include <linux/poll.h> #include <linux/module.h> #include <linux/cdev.h> -#include <linux/idr.h> #include <linux/slab.h> #include "iio.h" #include "ring_generic.h" -/* IDR for ring buffer identifier */ -static DEFINE_IDR(iio_ring_idr); -/* IDR for ring event identifier */ -static DEFINE_IDR(iio_ring_event_idr); -/* IDR for ring access identifier */ -static DEFINE_IDR(iio_ring_access_idr); - int iio_push_ring_event(struct iio_ring_buffer *ring_buf, int event_code, s64 timestamp) @@ -158,11 +150,8 @@ __iio_request_ring_buffer_event_chrdev(struct iio_ring_buffer *buf, struct device *dev) { int ret; - ret = iio_get_new_idr_val(&iio_ring_event_idr); - if (ret < 0) - goto error_ret; - else - buf->ev_int.id = ret; + + buf->ev_int.id = id; snprintf(buf->ev_int._name, sizeof(buf->ev_int._name), "%s:event%d", @@ -173,11 +162,9 @@ __iio_request_ring_buffer_event_chrdev(struct iio_ring_buffer *buf, owner, dev); if (ret) - goto error_free_id; + goto error_ret; return 0; -error_free_id: - iio_free_idr_val(&iio_ring_event_idr, buf->ev_int.id); error_ret: return ret; } @@ -186,7 +173,6 @@ static inline void __iio_free_ring_buffer_event_chrdev(struct iio_ring_buffer *buf) { iio_free_ev_int(&(buf->ev_int)); - iio_free_idr_val(&iio_ring_event_idr, buf->ev_int.id); } static void iio_ring_access_release(struct device *dev) @@ -222,18 +208,16 @@ __iio_request_ring_buffer_access_chrdev(struct iio_ring_buffer *buf, } buf->access_dev.devt = MKDEV(MAJOR(iio_devt), minor); - ret = iio_get_new_idr_val(&iio_ring_access_idr); - if (ret < 0) - goto error_device_put; - else - buf->access_id = ret; + + buf->access_id = id; + dev_set_name(&buf->access_dev, "%s:access%d", dev_name(&buf->dev), buf->access_id); ret = device_add(&buf->access_dev); if (ret < 0) { printk(KERN_ERR "failed to add the ring access dev\n"); - goto error_free_idr; + goto error_device_put; } cdev_init(&buf->access_handler.chrdev, &iio_ring_fileops); @@ -245,10 +229,9 @@ __iio_request_ring_buffer_access_chrdev(struct iio_ring_buffer *buf, goto error_device_unregister; } return 0; + error_device_unregister: device_unregister(&buf->access_dev); -error_free_idr: - iio_free_idr_val(&iio_ring_access_idr, buf->access_id); error_device_put: put_device(&buf->access_dev); @@ -257,7 +240,6 @@ error_device_put: static void __iio_free_ring_buffer_access_chrdev(struct iio_ring_buffer *buf) { - iio_free_idr_val(&iio_ring_access_idr, buf->access_id); device_unregister(&buf->access_dev); } @@ -274,21 +256,18 @@ void iio_ring_buffer_init(struct iio_ring_buffer *ring, } EXPORT_SYMBOL(iio_ring_buffer_init); -int iio_ring_buffer_register(struct iio_ring_buffer *ring) +int iio_ring_buffer_register(struct iio_ring_buffer *ring, int id) { int ret; - ret = iio_get_new_idr_val(&iio_ring_idr); - if (ret < 0) - goto error_ret; - else - ring->id = ret; + + ring->id = id; dev_set_name(&ring->dev, "%s:buffer%d", dev_name(ring->dev.parent), ring->id); ret = device_add(&ring->dev); if (ret) - goto error_free_id; + goto error_ret; ret = __iio_request_ring_buffer_event_chrdev(ring, 0, @@ -309,8 +288,6 @@ error_free_ring_buffer_event_chrdev: __iio_free_ring_buffer_event_chrdev(ring); error_remove_device: device_del(&ring->dev); -error_free_id: - iio_free_idr_val(&iio_ring_idr, ring->id); error_ret: return ret; } @@ -321,7 +298,6 @@ void iio_ring_buffer_unregister(struct iio_ring_buffer *ring) __iio_free_ring_buffer_access_chrdev(ring); __iio_free_ring_buffer_event_chrdev(ring); device_del(&ring->dev); - iio_free_idr_val(&iio_ring_idr, ring->id); } EXPORT_SYMBOL(iio_ring_buffer_unregister); |