linux-kernel - [ 35/37] udf: fix retun value on error path in udf_load

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Date:	Thu, 18 Oct 2012 20:16:58 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	alan@...rguk.ukuu.org.uk, Nikola Pajkovsky <npajkovs@...hat.com>,
	Jan Kara <jack@...e.cz>
Subject: [ 35/37] udf: fix retun value on error path in udf_load_logicalvol

3.0-stable review patch.  If anyone has any objections, please let me know.

------------------

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

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: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 fs/udf/super.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -1316,6 +1316,7 @@ static int udf_load_logicalvol(struct su
 		udf_error(sb, __func__, "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 su
 						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))) {


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