linux-kernel - [PATCH] sector_t last is unsigned, so cannot be less than 0.

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Message-ID: <4973B0F9.7010603@gmail.com>
Date:	Sun, 18 Jan 2009 23:45:13 +0100
From:	Roel Kluin <roel.kluin@...il.com>
To:	jack@...e.cz
CC:	lkml <linux-kernel@...r.kernel.org>
Subject: [PATCH] sector_t last is unsigned, so cannot be less than 0.

sector_t last is unsigned, so cannot be less than 0.

Signed-off-by: Roel Kluin <roel.kluin@...il.com>
---
diff --git a/fs/udf/super.c b/fs/udf/super.c
index e25e701..1f3941d 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -721,7 +721,7 @@ static sector_t udf_scan_anchors(struct super_block *sb, sector_t lastblock)
 	 *  however, if the disc isn't closed, it could be 512 */
 
 	for (i = 0; i < ARRAY_SIZE(last); i++) {
-		if (last[i] < 0)
+		if (last[i] > lastblock + 1)
 			continue;
 		if (last[i] >= sb->s_bdev->bd_inode->i_size >>
 				sb->s_blocksize_bits)
--
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