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iio: buffer-dma: split iio_dma_buffer_fileio_free() function

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This change splits the logic into a separate function, which will be
re-used later.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: Alexandru Ardelean <ardeleanalex@gmail.com>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20231219175009.65482-3-paul@crapouillou.net
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Alexandru Ardelean 2023-12-19 18:50:03 +01:00 committed by Jonathan Cameron
parent ee9ec49046
commit 996b2e046a
1 changed files with 24 additions and 19 deletions
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43
drivers/iio/buffer/industrialio-buffer-dma.c
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@ -346,6 +346,29 @@ out_unlock:
}
EXPORT_SYMBOL_GPL(iio_dma_buffer_request_update);
static void iio_dma_buffer_fileio_free(struct iio_dma_buffer_queue *queue)
{
unsigned int i;
spin_lock_irq(&queue->list_lock);
for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
if (!queue->fileio.blocks[i])
continue;
queue->fileio.blocks[i]->state = IIO_BLOCK_STATE_DEAD;
}
spin_unlock_irq(&queue->list_lock);
INIT_LIST_HEAD(&queue->incoming);
for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
if (!queue->fileio.blocks[i])
continue;
iio_buffer_block_put(queue->fileio.blocks[i]);
queue->fileio.blocks[i] = NULL;
}
queue->fileio.active_block = NULL;
}
static void iio_dma_buffer_submit_block(struct iio_dma_buffer_queue *queue,
struct iio_dma_buffer_block *block)
{
@ -638,27 +661,9 @@ EXPORT_SYMBOL_GPL(iio_dma_buffer_init);
*/
void iio_dma_buffer_exit(struct iio_dma_buffer_queue *queue)
{
unsigned int i;
mutex_lock(&queue->lock);
spin_lock_irq(&queue->list_lock);
for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
if (!queue->fileio.blocks[i])
continue;
queue->fileio.blocks[i]->state = IIO_BLOCK_STATE_DEAD;
}
spin_unlock_irq(&queue->list_lock);
INIT_LIST_HEAD(&queue->incoming);
for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
if (!queue->fileio.blocks[i])
continue;
iio_buffer_block_put(queue->fileio.blocks[i]);
queue->fileio.blocks[i] = NULL;
}
queue->fileio.active_block = NULL;
iio_dma_buffer_fileio_free(queue);
queue->ops = NULL;
mutex_unlock(&queue->lock);