snd_dma_alloc_pages_fallback (9) - Linux Manuals

snd_dma_alloc_pages_fallback: allocate the buffer area according to the given type with fallback

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.

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