i2o_dma_realloc

Langue: en

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

Sommaire

NAME

i2o_dma_realloc - Realloc DMA memory

SYNOPSIS

int i2o_dma_realloc(struct device * dev, struct i2o_dma * addr, size_t len, gfp_t gfp_mask);

ARGUMENTS

dev

struct device pointer to the PCI device of the I2O controller

addr

pointer to a i2o_dma struct DMA buffer

len

new length of memory

gfp_mask

GFP mask

DESCRIPTION

If there was something allocated in the addr, free it first. If len > 0 than try to allocate it and write the addresses back to the addr structure. If len == 0 set the virtual address to NULL.

Returns the 0 on success or negative error code on failure.