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| SND_DMA_ALLOC_PAGES_(9) | Management of Cards and Device | SND_DMA_ALLOC_PAGES_(9) |
NAME¶
snd_dma_alloc_pages_fallback - allocate the buffer area according to the given type with fallback
SYNOPSIS¶
int snd_dma_alloc_pages_fallback(int type, struct device * device, size_t size, struct snd_dma_buffer * dmab);
ARGUMENTS¶
type
the DMA buffer type
device
the device pointer
size
the buffer size to allocate
dmab
buffer allocation record to store the allocated
data
DESCRIPTION¶
Calls the memory-allocator function for the corresponding buffer type. When no space is left, this function reduces the size and tries to allocate again. The size actually allocated is stored in res_size argument.
RETURN¶
Zero if the buffer with the given size is allocated successfully, otherwise a negative value on error.
COPYRIGHT¶
| January 2017 | Kernel Hackers Manual 4.8. |