diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2021-10-13 12:49:23 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-11-20 14:17:22 +0000 |
| commit | e5cc9840f08be46c701d88b81f06d37db516fe32 (patch) | |
| tree | 6217b28fa3f740beafe58c4739ed4e8916d07211 /drivers/iio | |
| parent | 7d71d289e1ba86838bc908d5ce216a208815fd01 (diff) | |
iio: buffer: Use dedicated variable in iio_buffers_alloc_sysfs_and_mask()
Use dedicated variable for index in the loop in the
iio_buffers_alloc_sysfs_and_mask(). This will make code cleaner and
less error prone as proved by previous changes done in this function.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211013094923.2473-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/industrialio-buffer.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index e180728914c0..94eb9f6cf128 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -1727,8 +1727,7 @@ int iio_buffers_alloc_sysfs_and_mask(struct iio_dev *indio_dev) struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev); const struct iio_chan_spec *channels; struct iio_buffer *buffer; - int unwind_idx; - int ret, i; + int ret, i, idx; size_t sz; channels = indio_dev->channels; @@ -1743,15 +1742,12 @@ int iio_buffers_alloc_sysfs_and_mask(struct iio_dev *indio_dev) if (!iio_dev_opaque->attached_buffers_cnt) return 0; - for (i = 0; i < iio_dev_opaque->attached_buffers_cnt; i++) { - buffer = iio_dev_opaque->attached_buffers[i]; - ret = __iio_buffer_alloc_sysfs_and_mask(buffer, indio_dev, i); - if (ret) { - unwind_idx = i - 1; + for (idx = 0; idx < iio_dev_opaque->attached_buffers_cnt; idx++) { + buffer = iio_dev_opaque->attached_buffers[idx]; + ret = __iio_buffer_alloc_sysfs_and_mask(buffer, indio_dev, idx); + if (ret) goto error_unwind_sysfs_and_mask; - } } - unwind_idx = iio_dev_opaque->attached_buffers_cnt - 1; sz = sizeof(*(iio_dev_opaque->buffer_ioctl_handler)); iio_dev_opaque->buffer_ioctl_handler = kzalloc(sz, GFP_KERNEL); @@ -1767,9 +1763,9 @@ int iio_buffers_alloc_sysfs_and_mask(struct iio_dev *indio_dev) return 0; error_unwind_sysfs_and_mask: - for (; unwind_idx >= 0; unwind_idx--) { - buffer = iio_dev_opaque->attached_buffers[unwind_idx]; - __iio_buffer_free_sysfs_and_mask(buffer, indio_dev, unwind_idx); + while (idx--) { + buffer = iio_dev_opaque->attached_buffers[idx]; + __iio_buffer_free_sysfs_and_mask(buffer, indio_dev, idx); } return ret; } |