linux-kernel - [patch] fs/sysv: dereferencing ERR

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Date:	Wed, 21 Apr 2010 12:30:32 +0200
From:	Dan Carpenter <error27@...il.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Al Viro <viro@...iv.linux.org.uk>, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch] fs/sysv: dereferencing ERR_PTR()

I moved the dir_put_page() inside the if condition so we don't dereference
"page", if it's an ERR_PTR().

Signed-off-by: Dan Carpenter <error27@...il.com>

diff --git a/fs/sysv/dir.c b/fs/sysv/dir.c
index 4e50286..1dabed2 100644
--- a/fs/sysv/dir.c
+++ b/fs/sysv/dir.c
@@ -164,8 +164,8 @@ struct sysv_dir_entry *sysv_find_entry(struct dentry *dentry, struct page **res_
 							name, de->name))
 					goto found;
 			}
+			dir_put_page(page);
 		}
-		dir_put_page(page);
 
 		if (++n >= npages)
 			n = 0;
--
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