linux-ext4 - [PATCH 2/2] libext2fs: use ~0UL instead of -1UL to avoid static checker warnings

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Message-Id: <1411328260-8665-2-git-send-email-tytso@mit.edu>
Date:	Sun, 21 Sep 2014 15:37:40 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	Ext4 Developers List <linux-ext4@...r.kernel.org>
Cc:	Theodore Ts'o <tytso@....edu>
Subject: [PATCH 2/2] libext2fs: use ~0UL instead of -1UL to avoid static checker warnings

Signed-off-by: Theodore Ts'o <tytso@....edu>
---
 lib/ext2fs/ext2fs.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index d931fff..fef6910 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -1712,7 +1712,7 @@ _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
 
 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
 {
-	if (count && (-1UL)/count<size)
+	if (count && (~0UL)/count < size)
 		return EXT2_ET_NO_MEMORY;
 	return ext2fs_get_mem(count*size, ptr);
 }
@@ -1722,7 +1722,7 @@ _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
 {
 	void *pp;
 
-	if (count && (-1UL)/count<size)
+	if (count && (~0UL)/count < size)
 		return EXT2_ET_NO_MEMORY;
 	pp = calloc(count, size);
 	if (!pp)
-- 
2.1.0

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