UBIFS: check return code of pnode_lookup

Function pnode_lookup may return ERR_PTR(...). Check for it. Signed-off-by: Vasiliy Kulikov <segooon@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
git-mirror · Sep 7, 2010 · 8c893a5 · 8c893a5
1 parent 0e54c89
commit 8c893a5
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/fs/ubifs/lpt_commit.c b/fs/ubifs/lpt_commit.c
@@ -705,6 +705,9 @@ static int make_tree_dirty(struct ubifs_info *c)
 	struct ubifs_pnode *pnode;
 
 	pnode = pnode_lookup(c, 0);
+	if (IS_ERR(pnode))
+		return PTR_ERR(pnode);
+
 	while (pnode) {
 		do_make_pnode_dirty(c, pnode);
 		pnode = next_pnode_to_dirty(c, pnode);