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.