summaryrefslogtreecommitdiff
path: root/drivers/iio/industrialio-buffer.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/iio/industrialio-buffer.c')
-rw-r--r--drivers/iio/industrialio-buffer.c40
1 files changed, 24 insertions, 16 deletions
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 228598b82a2f..80c78bd6bbef 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -507,13 +507,14 @@ static ssize_t iio_scan_el_store(struct device *dev,
int ret;
bool state;
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
struct iio_buffer *buffer = this_attr->buffer;
ret = kstrtobool(buf, &state);
if (ret < 0)
return ret;
- mutex_lock(&indio_dev->mlock);
+ mutex_lock(&iio_dev_opaque->mlock);
if (iio_buffer_is_active(buffer)) {
ret = -EBUSY;
goto error_ret;
@@ -532,7 +533,7 @@ static ssize_t iio_scan_el_store(struct device *dev,
}
error_ret:
- mutex_unlock(&indio_dev->mlock);
+ mutex_unlock(&iio_dev_opaque->mlock);
return ret < 0 ? ret : len;
@@ -554,6 +555,7 @@ static ssize_t iio_scan_el_ts_store(struct device *dev,
{
int ret;
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
struct iio_buffer *buffer = to_iio_dev_attr(attr)->buffer;
bool state;
@@ -561,14 +563,14 @@ static ssize_t iio_scan_el_ts_store(struct device *dev,
if (ret < 0)
return ret;
- mutex_lock(&indio_dev->mlock);
+ mutex_lock(&iio_dev_opaque->mlock);
if (iio_buffer_is_active(buffer)) {
ret = -EBUSY;
goto error_ret;
}
buffer->scan_timestamp = state;
error_ret:
- mutex_unlock(&indio_dev->mlock);
+ mutex_unlock(&iio_dev_opaque->mlock);
return ret ? ret : len;
}
@@ -642,6 +644,7 @@ static ssize_t length_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t len)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
struct iio_buffer *buffer = to_iio_dev_attr(attr)->buffer;
unsigned int val;
int ret;
@@ -653,7 +656,7 @@ static ssize_t length_store(struct device *dev, struct device_attribute *attr,
if (val == buffer->length)
return len;
- mutex_lock(&indio_dev->mlock);
+ mutex_lock(&iio_dev_opaque->mlock);
if (iio_buffer_is_active(buffer)) {
ret = -EBUSY;
} else {
@@ -665,7 +668,7 @@ static ssize_t length_store(struct device *dev, struct device_attribute *attr,
if (buffer->length && buffer->length < buffer->watermark)
buffer->watermark = buffer->length;
out:
- mutex_unlock(&indio_dev->mlock);
+ mutex_unlock(&iio_dev_opaque->mlock);
return ret ? ret : len;
}
@@ -1256,7 +1259,7 @@ int iio_update_buffers(struct iio_dev *indio_dev,
return -EINVAL;
mutex_lock(&iio_dev_opaque->info_exist_lock);
- mutex_lock(&indio_dev->mlock);
+ mutex_lock(&iio_dev_opaque->mlock);
if (insert_buffer && iio_buffer_is_active(insert_buffer))
insert_buffer = NULL;
@@ -1277,7 +1280,7 @@ int iio_update_buffers(struct iio_dev *indio_dev,
ret = __iio_update_buffers(indio_dev, insert_buffer, remove_buffer);
out_unlock:
- mutex_unlock(&indio_dev->mlock);
+ mutex_unlock(&iio_dev_opaque->mlock);
mutex_unlock(&iio_dev_opaque->info_exist_lock);
return ret;
@@ -1296,6 +1299,7 @@ static ssize_t enable_store(struct device *dev, struct device_attribute *attr,
int ret;
bool requested_state;
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
struct iio_buffer *buffer = to_iio_dev_attr(attr)->buffer;
bool inlist;
@@ -1303,7 +1307,7 @@ static ssize_t enable_store(struct device *dev, struct device_attribute *attr,
if (ret < 0)
return ret;
- mutex_lock(&indio_dev->mlock);
+ mutex_lock(&iio_dev_opaque->mlock);
/* Find out if it is in the list */
inlist = iio_buffer_is_active(buffer);
@@ -1317,7 +1321,7 @@ static ssize_t enable_store(struct device *dev, struct device_attribute *attr,
ret = __iio_update_buffers(indio_dev, NULL, buffer);
done:
- mutex_unlock(&indio_dev->mlock);
+ mutex_unlock(&iio_dev_opaque->mlock);
return (ret < 0) ? ret : len;
}
@@ -1334,6 +1338,7 @@ static ssize_t watermark_store(struct device *dev,
const char *buf, size_t len)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
struct iio_buffer *buffer = to_iio_dev_attr(attr)->buffer;
unsigned int val;
int ret;
@@ -1344,7 +1349,7 @@ static ssize_t watermark_store(struct device *dev,
if (!val)
return -EINVAL;
- mutex_lock(&indio_dev->mlock);
+ mutex_lock(&iio_dev_opaque->mlock);
if (val > buffer->length) {
ret = -EINVAL;
@@ -1358,7 +1363,7 @@ static ssize_t watermark_store(struct device *dev,
buffer->watermark = val;
out:
- mutex_unlock(&indio_dev->mlock);
+ mutex_unlock(&iio_dev_opaque->mlock);
return ret ? ret : len;
}
@@ -1600,6 +1605,7 @@ static int __iio_buffer_alloc_sysfs_and_mask(struct iio_buffer *buffer,
{
struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
struct iio_dev_attr *p;
+ const struct iio_dev_attr *id_attr;
struct attribute **attr;
int ret, i, attrn, scan_el_attrcount, buffer_attrcount;
const struct iio_chan_spec *channels;
@@ -1609,6 +1615,7 @@ static int __iio_buffer_alloc_sysfs_and_mask(struct iio_buffer *buffer,
while (buffer->attrs[buffer_attrcount] != NULL)
buffer_attrcount++;
}
+ buffer_attrcount += ARRAY_SIZE(iio_buffer_attrs);
scan_el_attrcount = 0;
INIT_LIST_HEAD(&buffer->buffer_attr_list);
@@ -1651,7 +1658,7 @@ static int __iio_buffer_alloc_sysfs_and_mask(struct iio_buffer *buffer,
}
}
- attrn = buffer_attrcount + scan_el_attrcount + ARRAY_SIZE(iio_buffer_attrs);
+ attrn = buffer_attrcount + scan_el_attrcount;
attr = kcalloc(attrn + 1, sizeof(*attr), GFP_KERNEL);
if (!attr) {
ret = -ENOMEM;
@@ -1666,10 +1673,11 @@ static int __iio_buffer_alloc_sysfs_and_mask(struct iio_buffer *buffer,
attr[2] = &dev_attr_watermark_ro.attr;
if (buffer->attrs)
- memcpy(&attr[ARRAY_SIZE(iio_buffer_attrs)], buffer->attrs,
- sizeof(struct attribute *) * buffer_attrcount);
+ for (i = 0, id_attr = buffer->attrs[i];
+ (id_attr = buffer->attrs[i]); i++)
+ attr[ARRAY_SIZE(iio_buffer_attrs) + i] =
+ (struct attribute *)&id_attr->dev_attr.attr;
- buffer_attrcount += ARRAY_SIZE(iio_buffer_attrs);
buffer->buffer_group.attrs = attr;
for (i = 0; i < buffer_attrcount; i++) {
generated by cgit (git 2.34.1) at 2024-06-11 01:20:00 +0000