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ALSA: memalloc: Fix missing return value comments for kernel docs

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Each kernel doc comment expects the definition of the return value in
a proper format.  This patch adds or fixes the missing entries for
memory allocation helpers.

Link: https://lore.kernel.org/r/20220713104759.4365-7-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2022-07-13 12:47:58 +02:00
parent e8406ebc37
commit 6eba99d4ce
1 changed files with 9 additions and 1 deletions
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10
sound/core/memalloc.c
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@ -147,7 +147,7 @@ static void __snd_release_pages(struct device *dev, void *res)
* hence it can't work with SNDRV_DMA_TYPE_CONTINUOUS or
* SNDRV_DMA_TYPE_VMALLOC type.
*
* The function returns the snd_dma_buffer object at success, or NULL if failed.
* Return: the snd_dma_buffer object at success, or NULL if failed
*/
struct snd_dma_buffer *
snd_devm_alloc_dir_pages(struct device *dev, int type,
@ -179,6 +179,8 @@ EXPORT_SYMBOL_GPL(snd_devm_alloc_dir_pages);
* snd_dma_buffer_mmap - perform mmap of the given DMA buffer
* @dmab: buffer allocation information
* @area: VM area information
*
* Return: zero if successful, or a negative error code
*/
int snd_dma_buffer_mmap(struct snd_dma_buffer *dmab,
struct vm_area_struct *area)
@ -219,6 +221,8 @@ EXPORT_SYMBOL_GPL(snd_dma_buffer_sync);
* snd_sgbuf_get_addr - return the physical address at the corresponding offset
* @dmab: buffer allocation information
* @offset: offset in the ring buffer
*
* Return: the physical address
*/
dma_addr_t snd_sgbuf_get_addr(struct snd_dma_buffer *dmab, size_t offset)
{
@ -235,6 +239,8 @@ EXPORT_SYMBOL(snd_sgbuf_get_addr);
* snd_sgbuf_get_page - return the physical page at the corresponding offset
* @dmab: buffer allocation information
* @offset: offset in the ring buffer
*
* Return: the page pointer
*/
struct page *snd_sgbuf_get_page(struct snd_dma_buffer *dmab, size_t offset)
{
@ -253,6 +259,8 @@ EXPORT_SYMBOL(snd_sgbuf_get_page);
* @dmab: buffer allocation information
* @ofs: offset in the ring buffer
* @size: the requested size
*
* Return: the chunk size
*/
unsigned int snd_sgbuf_get_chunk_size(struct snd_dma_buffer *dmab,
unsigned int ofs, unsigned int size)