diff options
Diffstat (limited to 'arch/unicore32/mm')
| -rw-r--r-- | arch/unicore32/mm/ioremap.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/arch/unicore32/mm/ioremap.c b/arch/unicore32/mm/ioremap.c index b7a605597b0..13068ee22f3 100644 --- a/arch/unicore32/mm/ioremap.c +++ b/arch/unicore32/mm/ioremap.c @@ -235,7 +235,7 @@ EXPORT_SYMBOL(__uc32_ioremap_cached); void __uc32_iounmap(volatile void __iomem *io_addr) { void *addr = (void *)(PAGE_MASK & (unsigned long)io_addr); - struct vm_struct **p, *tmp; + struct vm_struct *vm; /* * If this is a section based mapping we need to handle it @@ -244,17 +244,10 @@ void __uc32_iounmap(volatile void __iomem *io_addr) * all the mappings before the area can be reclaimed * by someone else. */ - write_lock(&vmlist_lock); - for (p = &vmlist ; (tmp = *p) ; p = &tmp->next) { - if ((tmp->flags & VM_IOREMAP) && (tmp->addr == addr)) { - if (tmp->flags & VM_UNICORE_SECTION_MAPPING) { - unmap_area_sections((unsigned long)tmp->addr, - tmp->size); - } - break; - } - } - write_unlock(&vmlist_lock); + vm = find_vm_area(addr); + if (vm && (vm->flags & VM_IOREMAP) && + (vm->flags & VM_UNICORE_SECTION_MAPPING)) + unmap_area_sections((unsigned long)vm->addr, vm->size); vunmap(addr); } |