{
int nr_start = *nr;
struct dev_pagemap *pgmap = NULL;
+ int ret = 1;
do {
struct page *page = pfn_to_page(pfn);
pgmap = get_dev_pagemap(pfn, pgmap);
if (unlikely(!pgmap)) {
undo_dev_pagemap(nr, nr_start, flags, pages);
- return 0;
+ ret = 0;
+ break;
}
SetPageReferenced(page);
pages[*nr] = page;
if (unlikely(!try_grab_page(page, flags))) {
undo_dev_pagemap(nr, nr_start, flags, pages);
- return 0;
+ ret = 0;
+ break;
}
(*nr)++;
pfn++;
} while (addr += PAGE_SIZE, addr != end);
- if (pgmap)
- put_dev_pagemap(pgmap);
- return 1;
+ put_dev_pagemap(pgmap);
+ return ret;
}
static int __gup_device_huge_pmd(pmd_t orig, pmd_t *pmdp, unsigned long addr,