linux-kernel - [PATCH 11/14] ubifs: check return code of ubifs_lpt

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Date:	Sun,  5 Sep 2010 22:33:00 +0400
From:	Kulikov Vasiliy <segooon@...il.com>
To:	kernel-janitors@...r.kernel.org
Cc:	Vasiliy Kulikov <segooon@...il.com>,
	Artem Bityutskiy <dedekind1@...il.com>,
	Adrian Hunter <adrian.hunter@...ia.com>,
	Julia Lawall <julia@...u.dk>, Tejun Heo <tj@...nel.org>,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 11/14] ubifs: check return code of ubifs_lpt_lookup

From: Vasiliy Kulikov <segooon@...il.com>

Function ubifs_lpt_lookup may return ERR_PTR(...). Check for it.

Signed-off-by: Vasiliy Kulikov <segooon@...il.com>
---
 Compile tested.

 fs/ubifs/lpt.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/fs/ubifs/lpt.c b/fs/ubifs/lpt.c
index 0084a33..841bb36 100644
--- a/fs/ubifs/lpt.c
+++ b/fs/ubifs/lpt.c
@@ -1351,6 +1351,7 @@ static int read_lsave(struct ubifs_info *c)
 {
 	int err, i;
 	void *buf;
+	struct ubifs_lprops *perr;
 
 	buf = vmalloc(c->lsave_sz);
 	if (!buf)
@@ -1370,7 +1371,11 @@ static int read_lsave(struct ubifs_info *c)
 		 */
 		if (lnum >= c->leb_cnt)
 			continue;
-		ubifs_lpt_lookup(c, lnum);
+		perr = ubifs_lpt_lookup(c, lnum);
+		if (IS_ERR(perr)) {
+			err = PTR_ERR(perr);
+			goto out;
+		}
 	}
 out:
 	vfree(buf);
-- 
1.7.0.4

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