From: Jonathan Cameron <jic23@xxxxxxxxx>
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/staging/iio/accel/lis3l02dq_ring.c | 2 +-
drivers/staging/iio/accel/sca3000_core.c | 2 +-
drivers/staging/iio/adc/max1363_ring.c | 2 +-
drivers/staging/iio/industrialio-ring.c | 48 +++++++---------------------
drivers/staging/iio/ring_generic.h | 2 +-
5 files changed, 16 insertions(+), 40 deletions(-)
diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index bba4b09..7617da8 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -581,7 +581,7 @@ error_iio_sw_rb_free:
int lis3l02dq_initialize_ring(struct iio_ring_buffer *ring)
{
- return iio_ring_buffer_register(ring);
+ return iio_ring_buffer_register(ring, 0);
}
void lis3l02dq_uninitialize_ring(struct iio_ring_buffer *ring)
diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c
index 45e4777..9485b13 100644
--- a/drivers/staging/iio/accel/sca3000_core.c
+++ b/drivers/staging/iio/accel/sca3000_core.c
@@ -1338,7 +1338,7 @@ static int __devinit __sca3000_probe(struct spi_device *spi,
if (ret < 0)
goto error_free_dev;
regdone = 1;
- ret = iio_ring_buffer_register(st->indio_dev->ring);
+ ret = iio_ring_buffer_register(st->indio_dev->ring, 0);
if (ret < 0)
goto error_unregister_dev;
if (spi->irq && gpio_is_valid(irq_to_gpio(spi->irq)) > 0) {
diff --git a/drivers/staging/iio/adc/max1363_ring.c b/drivers/staging/iio/adc/max1363_ring.c
index 6003f7e..f1e37f2 100644
--- a/drivers/staging/iio/adc/max1363_ring.c
+++ b/drivers/staging/iio/adc/max1363_ring.c
@@ -255,5 +255,5 @@ void max1363_uninitialize_ring(struct iio_ring_buffer *ring)
int max1363_initialize_ring(struct iio_ring_buffer *ring)
{
- return iio_ring_buffer_register(ring);
+ return iio_ring_buffer_register(ring, 0);
};
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);
diff --git a/drivers/staging/iio/ring_generic.h b/drivers/staging/iio/ring_generic.h
index d74b5ae..0e44375 100644
--- a/drivers/staging/iio/ring_generic.h
+++ b/drivers/staging/iio/ring_generic.h
@@ -259,7 +259,7 @@ static inline void iio_put_ring_buffer(struct iio_ring_buffer *ring)
container_of(d, struct iio_ring_buffer, dev)
#define access_dev_to_iio_ring_buffer(d) \
container_of(d, struct iio_ring_buffer, access_dev)
-int iio_ring_buffer_register(struct iio_ring_buffer *ring);
+int iio_ring_buffer_register(struct iio_ring_buffer *ring, int id);
void iio_ring_buffer_unregister(struct iio_ring_buffer *ring);
ssize_t iio_read_ring_length(struct device *dev,
--
1.7.0.3
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