From b469d4329cf949043f9b93a6644f2c64015ef8cd Mon Sep 17 00:00:00 2001 From: Tiejun Chen Date: Wed, 11 Jan 2012 05:51:10 +0000 Subject: kmemleak: Only scan non-zero-size areas Kmemleak should only track valid scan areas with a non-zero size. Otherwise, such area may reside just at the end of an object and kmemleak would report "Adding scan area to unknown object". Signed-off-by: Tiejun Chen Signed-off-by: Catalin Marinas --- mm/kmemleak.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'mm/kmemleak.c') diff --git a/mm/kmemleak.c b/mm/kmemleak.c index c833addd94d7..f9f7310f0fdb 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -1036,7 +1036,7 @@ void __ref kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) { pr_debug("%s(0x%p)\n", __func__, ptr); - if (atomic_read(&kmemleak_enabled) && ptr && !IS_ERR(ptr)) + if (atomic_read(&kmemleak_enabled) && ptr && size && !IS_ERR(ptr)) add_scan_area((unsigned long)ptr, size, gfp); else if (atomic_read(&kmemleak_early_log)) log_early(KMEMLEAK_SCAN_AREA, ptr, size, 0); -- cgit v1.2.3-58-ga151