ALSA: pcm: Define snd_pcm_lib_preallocate_*() as returning void
Now all callers no longer check the return value from snd_pcm_lib_preallocate_pages() and co, let's make them to return void, so that any new code won't fall into the same pitfall. Reviewed-by: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -1185,12 +1185,12 @@ static inline void snd_pcm_gettime(struct snd_pcm_runtime *runtime,
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* Memory
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*/
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int snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream);
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int snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm);
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int snd_pcm_lib_preallocate_pages(struct snd_pcm_substream *substream,
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void snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream);
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void snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm);
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void snd_pcm_lib_preallocate_pages(struct snd_pcm_substream *substream,
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int type, struct device *data,
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size_t size, size_t max);
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int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm,
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void snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm,
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int type, void *data,
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size_t size, size_t max);
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int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size);
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@ -87,13 +87,10 @@ static void snd_pcm_lib_preallocate_dma_free(struct snd_pcm_substream *substream
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* @substream: the pcm substream instance
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*
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* Releases the pre-allocated buffer of the given substream.
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*
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* Return: Zero if successful, or a negative error code on failure.
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*/
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int snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream)
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void snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream)
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{
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snd_pcm_lib_preallocate_dma_free(substream);
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return 0;
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}
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/**
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@ -101,10 +98,8 @@ int snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream)
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* @pcm: the pcm instance
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*
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* Releases all the pre-allocated buffers on the given pcm.
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*
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* Return: Zero if successful, or a negative error code on failure.
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*/
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int snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm)
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void snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm)
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{
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struct snd_pcm_substream *substream;
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int stream;
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@ -112,7 +107,6 @@ int snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm)
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for (stream = 0; stream < 2; stream++)
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for (substream = pcm->streams[stream].substream; substream; substream = substream->next)
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snd_pcm_lib_preallocate_free(substream);
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return 0;
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}
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EXPORT_SYMBOL(snd_pcm_lib_preallocate_free_for_all);
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@ -214,7 +208,7 @@ static inline void preallocate_info_init(struct snd_pcm_substream *substream)
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/*
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* pre-allocate the buffer and create a proc file for the substream
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*/
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static int snd_pcm_lib_preallocate_pages1(struct snd_pcm_substream *substream,
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static void snd_pcm_lib_preallocate_pages1(struct snd_pcm_substream *substream,
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size_t size, size_t max)
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{
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@ -225,7 +219,6 @@ static int snd_pcm_lib_preallocate_pages1(struct snd_pcm_substream *substream,
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substream->buffer_bytes_max = substream->dma_buffer.bytes;
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substream->dma_max = max;
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preallocate_info_init(substream);
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return 0;
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}
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@ -238,16 +231,14 @@ static int snd_pcm_lib_preallocate_pages1(struct snd_pcm_substream *substream,
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* @max: the max. allowed pre-allocation size
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*
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* Do pre-allocation for the given DMA buffer type.
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*
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* Return: Zero if successful, or a negative error code on failure.
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*/
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int snd_pcm_lib_preallocate_pages(struct snd_pcm_substream *substream,
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void snd_pcm_lib_preallocate_pages(struct snd_pcm_substream *substream,
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int type, struct device *data,
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size_t size, size_t max)
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{
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substream->dma_buffer.dev.type = type;
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substream->dma_buffer.dev.dev = data;
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return snd_pcm_lib_preallocate_pages1(substream, size, max);
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snd_pcm_lib_preallocate_pages1(substream, size, max);
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}
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EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages);
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@ -261,21 +252,17 @@ EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages);
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*
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* Do pre-allocation to all substreams of the given pcm for the
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* specified DMA type.
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*
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* Return: Zero if successful, or a negative error code on failure.
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*/
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int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm,
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void snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm,
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int type, void *data,
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size_t size, size_t max)
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{
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struct snd_pcm_substream *substream;
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int stream, err;
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int stream;
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for (stream = 0; stream < 2; stream++)
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for (substream = pcm->streams[stream].substream; substream; substream = substream->next)
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if ((err = snd_pcm_lib_preallocate_pages(substream, type, data, size, max)) < 0)
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return err;
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return 0;
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snd_pcm_lib_preallocate_pages(substream, type, data, size, max);
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}
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EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages_for_all);
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