diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/io-mapping.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/io-mapping.h b/include/linux/io-mapping.h index cbc2f0cd631b..f1ed66c43787 100644 --- a/include/linux/io-mapping.h +++ b/include/linux/io-mapping.h @@ -49,8 +49,9 @@ static inline struct io_mapping * io_mapping_create_wc(resource_size_t base, unsigned long size) { struct io_mapping *iomap; + pgprot_t prot; - if (!is_io_mapping_possible(base, size)) + if (!reserve_io_memtype_wc(base, size, &prot)) return NULL; iomap = kmalloc(sizeof(*iomap), GFP_KERNEL); @@ -59,13 +60,14 @@ io_mapping_create_wc(resource_size_t base, unsigned long size) iomap->base = base; iomap->size = size; - iomap->prot = pgprot_writecombine(__pgprot(__PAGE_KERNEL)); + iomap->prot = prot; return iomap; } static inline void io_mapping_free(struct io_mapping *mapping) { + free_io_memtype(mapping->base, mapping->size); kfree(mapping); } |