diff options
author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-03-04 11:55:40 +0300 |
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committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-04-04 22:19:51 +0300 |
commit | 3862828a903d3c2b1e9415dca0f4f5d9de52e836 (patch) | |
tree | 70f16353ffc0ea5f0bba8c1038e8fbed39e99fa9 /drivers/iio/industrialio-buffer.c | |
parent | 74c420e0a581c2e333c2f5742506e86f198af70b (diff) | |
download | linux-3862828a903d3c2b1e9415dca0f4f5d9de52e836.tar.xz |
iio: buffer: Switch to bitmap_zalloc()
Switch to bitmap_zalloc() to show clearly what we are allocating.
Besides that it returns pointer of bitmap type instead of opaque void *.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/industrialio-buffer.c')
-rw-r--r-- | drivers/iio/industrialio-buffer.c | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index cd5bfe39591b..3c7e7380d1c3 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -320,9 +320,7 @@ static int iio_scan_mask_set(struct iio_dev *indio_dev, const unsigned long *mask; unsigned long *trialmask; - trialmask = kmalloc_array(BITS_TO_LONGS(indio_dev->masklength), - sizeof(*trialmask), - GFP_KERNEL); + trialmask = bitmap_alloc(indio_dev->masklength, GFP_KERNEL); if (trialmask == NULL) return -ENOMEM; if (!indio_dev->masklength) { @@ -344,12 +342,12 @@ static int iio_scan_mask_set(struct iio_dev *indio_dev, } bitmap_copy(buffer->scan_mask, trialmask, indio_dev->masklength); - kfree(trialmask); + bitmap_free(trialmask); return 0; err_invalid_mask: - kfree(trialmask); + bitmap_free(trialmask); return -EINVAL; } @@ -666,7 +664,7 @@ static void iio_free_scan_mask(struct iio_dev *indio_dev, { /* If the mask is dynamically allocated free it, otherwise do nothing */ if (!indio_dev->available_scan_masks) - kfree(mask); + bitmap_free(mask); } struct iio_device_config { @@ -736,8 +734,7 @@ static int iio_verify_update(struct iio_dev *indio_dev, } /* What scan mask do we actually have? */ - compound_mask = kcalloc(BITS_TO_LONGS(indio_dev->masklength), - sizeof(long), GFP_KERNEL); + compound_mask = bitmap_zalloc(indio_dev->masklength, GFP_KERNEL); if (compound_mask == NULL) return -ENOMEM; @@ -762,7 +759,7 @@ static int iio_verify_update(struct iio_dev *indio_dev, indio_dev->masklength, compound_mask, strict_scanmask); - kfree(compound_mask); + bitmap_free(compound_mask); if (scan_mask == NULL) return -EINVAL; } else { @@ -1303,9 +1300,8 @@ int iio_buffer_alloc_sysfs_and_mask(struct iio_dev *indio_dev) channels[i].scan_index; } if (indio_dev->masklength && buffer->scan_mask == NULL) { - buffer->scan_mask = kcalloc(BITS_TO_LONGS(indio_dev->masklength), - sizeof(*buffer->scan_mask), - GFP_KERNEL); + buffer->scan_mask = bitmap_zalloc(indio_dev->masklength, + GFP_KERNEL); if (buffer->scan_mask == NULL) { ret = -ENOMEM; goto error_cleanup_dynamic; @@ -1334,7 +1330,7 @@ int iio_buffer_alloc_sysfs_and_mask(struct iio_dev *indio_dev) return 0; error_free_scan_mask: - kfree(buffer->scan_mask); + bitmap_free(buffer->scan_mask); error_cleanup_dynamic: iio_free_chan_devattr_list(&buffer->scan_el_dev_attr_list); kfree(indio_dev->buffer->buffer_group.attrs); @@ -1347,7 +1343,7 @@ void iio_buffer_free_sysfs_and_mask(struct iio_dev *indio_dev) if (!indio_dev->buffer) return; - kfree(indio_dev->buffer->scan_mask); + bitmap_free(indio_dev->buffer->scan_mask); kfree(indio_dev->buffer->buffer_group.attrs); kfree(indio_dev->buffer->scan_el_group.attrs); iio_free_chan_devattr_list(&indio_dev->buffer->scan_el_dev_attr_list); |