struct io_mapping *iomap;
pgprot_t prot;
- if (!reserve_io_memtype_wc(base, size, &prot))
- return NULL;
-
iomap = kmalloc(sizeof(*iomap), GFP_KERNEL);
if (!iomap)
- return NULL;
+ goto out_err;
+
+ if (iomap_create_wc(base, size, &prot))
+ goto out_free;
iomap->base = base;
iomap->size = size;
iomap->prot = prot;
return iomap;
+
+out_free:
+ kfree(iomap);
+out_err:
+ return NULL;
}
static inline void
io_mapping_free(struct io_mapping *mapping)
{
- free_io_memtype(mapping->base, mapping->size);
+ iomap_free(mapping->base, mapping->size);
kfree(mapping);
}
static inline void *
io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
{
+ resource_size_t phys_addr;
+
BUG_ON(offset >= mapping->size);
- resource_size_t phys_addr = mapping->base + offset;
+ phys_addr = mapping->base + offset;
+
return ioremap_wc(phys_addr, PAGE_SIZE);
}