Commit b469d432 authored Jan 11, 2012 by Tiejun Chen Committed by Catalin Marinas Jan 20, 2012

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 <tiejun.chen@windriver.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

parent dcd6c922

mm/kmemleak.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);