diff --git a/mm/cma.c b/mm/cma.c index 94b5da468a7d..15cc0ae76c8e 100644 --- a/mm/cma.c +++ b/mm/cma.c @@ -1013,6 +1013,7 @@ bool cma_release(struct cma *cma, const struct page *pages, unsigned long count) { struct cma_memrange *cmr; + unsigned long ret = 0; unsigned long i, pfn; cmr = find_cma_memrange(cma, pages, count); @@ -1021,7 +1022,9 @@ bool cma_release(struct cma *cma, const struct page *pages, pfn = page_to_pfn(pages); for (i = 0; i < count; i++, pfn++) - VM_WARN_ON(!put_page_testzero(pfn_to_page(pfn))); + ret += !put_page_testzero(pfn_to_page(pfn)); + + WARN(ret, "%lu pages are still in use!\n", ret); __cma_release_frozen(cma, cmr, pages, count);