From: Vasiliy Kulikov <segooon@gmail.com>
Date: Sun, 5 Sep 2010 18:33:00 +0000 (+0400)
Subject: UBIFS: check return code of ubifs_lpt_lookup
X-Git-Tag: firefly_0821_release~7613^2~3693^2~8
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=0e54c8992a35ab8126e8a7661007ddc1745a2597;p=firefly-linux-kernel-4.4.55.git

UBIFS: check return code of ubifs_lpt_lookup

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

[Tweaked by Artem Bityutskiy]

Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
---

diff --git a/fs/ubifs/lpt.c b/fs/ubifs/lpt.c
index 0084a33c4c69..72775d35b99e 100644
--- a/fs/ubifs/lpt.c
+++ b/fs/ubifs/lpt.c
@@ -1363,6 +1363,7 @@ static int read_lsave(struct ubifs_info *c)
 		goto out;
 	for (i = 0; i < c->lsave_cnt; i++) {
 		int lnum = c->lsave[i];
+		struct ubifs_lprops *lprops;
 
 		/*
 		 * Due to automatic resizing, the values in the lsave table
@@ -1370,7 +1371,11 @@ static int read_lsave(struct ubifs_info *c)
 		 */
 		if (lnum >= c->leb_cnt)
 			continue;
-		ubifs_lpt_lookup(c, lnum);
+		lprops = ubifs_lpt_lookup(c, lnum);
+		if (IS_ERR(lprops)) {
+			err = PTR_ERR(lprops);
+			goto out;
+		}
 	}
 out:
 	vfree(buf);