linux-kernel - [v2.6.34-stable 190/213] udf: fix retun value on error path in udf_load

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Date:	Wed, 5 Feb 2014 15:02:25 -0500
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	<stable@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:	Nikola Pajkovsky <npajkovs@...hat.com>, Jan Kara <jack@...e.cz>,
	Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: [v2.6.34-stable 190/213] udf: fix retun value on error path in udf_load_logicalvol

From: Nikola Pajkovsky <npajkovs@...hat.com>

                   -------------------
    This is a commit scheduled for the next v2.6.34 longterm release.
    http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git
    If you see a problem with using this for longterm, please comment.
                   -------------------

commit 68766a2edcd5cd744262a70a2f67a320ac944760 upstream.

In case we detect a problem and bail out, we fail to set "ret" to a
nonzero value, and udf_load_logicalvol will mistakenly report success.

Signed-off-by: Nikola Pajkovsky <npajkovs@...hat.com>
Signed-off-by: Jan Kara <jack@...e.cz>
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 fs/udf/super.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/udf/super.c b/fs/udf/super.c
index 5ece6d6721f8..325d4d6856b1 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -1314,6 +1314,7 @@ static int udf_load_logicalvol(struct super_block *sb, sector_t block,
 			  "error loading logical volume descriptor: "
 			  "Partition table too long (%u > %lu)\n", table_len,
 			  sb->s_blocksize - sizeof(*lvd));
+		ret = 1;
 		goto out_bh;
 	}
 
@@ -1360,8 +1361,10 @@ static int udf_load_logicalvol(struct super_block *sb, sector_t block,
 						UDF_ID_SPARABLE,
 						strlen(UDF_ID_SPARABLE))) {
 				if (udf_load_sparable_map(sb, map,
-				    (struct sparablePartitionMap *)gpm) < 0)
+				    (struct sparablePartitionMap *)gpm) < 0) {
+					ret = 1;
 					goto out_bh;
+				}
 			} else if (!strncmp(upm2->partIdent.ident,
 						UDF_ID_METADATA,
 						strlen(UDF_ID_METADATA))) {
-- 
1.8.5.2

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