diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-25 19:59:04 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-25 19:59:04 +0400 |
| commit | e2aad1d5716c5f7fa5deb4a96e6b6a4e9f24e78b (patch) | |
| tree | 389fbdf161a3c28c9b2f98fdc1ccd89d474ef884 /drivers/iio/industrialio-buffer.c | |
| parent | 3ffdea3feca9e2c95c2e93e217d77c9c368f747a (diff) | |
| parent | 4a10c2ac2f368583138b774ca41fac4207911983 (diff) | |
| download | linux-e2aad1d5716c5f7fa5deb4a96e6b6a4e9f24e78b.tar.xz | |
Merge 3.12-rc2 into staging-next.
This resolves the merge problem with two iio drivers that Stephen
Rothwell pointed out.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/iio/industrialio-buffer.c')
| -rw-r--r-- | drivers/iio/industrialio-buffer.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index 2361fbc74e33..e9f389b9da69 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -454,6 +454,25 @@ static int iio_compute_scan_bytes(struct iio_dev *indio_dev, return bytes; } +void iio_disable_all_buffers(struct iio_dev *indio_dev) +{ + struct iio_buffer *buffer, *_buffer; + + if (list_empty(&indio_dev->buffer_list)) + return; + + if (indio_dev->setup_ops->predisable) + indio_dev->setup_ops->predisable(indio_dev); + + list_for_each_entry_safe(buffer, _buffer, + &indio_dev->buffer_list, buffer_list) + list_del_init(&buffer->buffer_list); + + indio_dev->currentmode = INDIO_DIRECT_MODE; + if (indio_dev->setup_ops->postdisable) + indio_dev->setup_ops->postdisable(indio_dev); +} + int iio_update_buffers(struct iio_dev *indio_dev, struct iio_buffer *insert_buffer, struct iio_buffer *remove_buffer) @@ -522,8 +541,15 @@ int iio_update_buffers(struct iio_dev *indio_dev, * Note can only occur when adding a buffer. */ list_del_init(&insert_buffer->buffer_list); - indio_dev->active_scan_mask = old_mask; - success = -EINVAL; + if (old_mask) { + indio_dev->active_scan_mask = old_mask; + success = -EINVAL; + } + else { + kfree(compound_mask); + ret = -EINVAL; + goto error_ret; + } } } else { indio_dev->active_scan_mask = compound_mask; |