[PATCH 33/38] mm/memblock.c: remove invalid check

From	Andrzej Hajda <a.hajda@samsung.com>
Newsgroups	linux.kernel
Subject	[PATCH 33/38] mm/memblock.c: remove invalid check
Date	2015-09-21 15:50 +0200
Message-ID	<qb9DK-8gq-57@gated-at.bofh.it> (permalink)
References	<qb9u2-83M-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Unsigned value cannot be lesser than zero.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
---
 mm/memblock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memblock.c b/mm/memblock.c
index d300f13..aeb5148 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -837,7 +837,7 @@ void __init_memblock __next_reserved_mem_region(u64 *idx,
 {
 	struct memblock_type *type = &memblock.reserved;
 
-	if (*idx >= 0 && *idx < type->cnt) {
+	if (*idx < type->cnt) {
 		struct memblock_region *r = &type->regions[*idx];
 		phys_addr_t base = r->base;
 		phys_addr_t size = r->size;
-- 
1.9.1

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[PATCH 33/38] mm/memblock.c: remove invalid check Andrzej Hajda <a.hajda@samsung.com> - 2015-09-21 15:50 +0200
  Re: [PATCH 33/38] mm/memblock.c: remove invalid check Andrew Morton <akpm@linux-foundation.org> - 2015-09-21 23:40 +0200

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