linux-kernel - [085/107] hfsplus: add missing call to bio

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Message-Id: <20110708001701.017140478@clark.kroah.org>
Date:	Thu, 07 Jul 2011 17:16:57 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Seth Forshee <seth.forshee@...onical.com>,
	Christoph Hellwig <hch@....de>
Subject: [085/107] hfsplus: add missing call to bio_put()

2.6.39-stable review patch.  If anyone has any objections, please let us know.

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

From: Seth Forshee <seth.forshee@...onical.com>

commit 50176ddefa4a942419cb693dd2d8345bfdcde67c upstream.

hfsplus leaks bio objects by failing to call bio_put() on the bios
it allocates. Add the missing call to fix the leak.

Signed-off-by: Seth Forshee <seth.forshee@...onical.com>
Signed-off-by: Christoph Hellwig <hch@....de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 fs/hfsplus/wrapper.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

--- a/fs/hfsplus/wrapper.c
+++ b/fs/hfsplus/wrapper.c
@@ -36,6 +36,7 @@ int hfsplus_submit_bio(struct block_devi
 {
 	DECLARE_COMPLETION_ONSTACK(wait);
 	struct bio *bio;
+	int ret = 0;
 
 	bio = bio_alloc(GFP_NOIO, 1);
 	bio->bi_sector = sector;
@@ -54,8 +55,10 @@ int hfsplus_submit_bio(struct block_devi
 	wait_for_completion(&wait);
 
 	if (!bio_flagged(bio, BIO_UPTODATE))
-		return -EIO;
-	return 0;
+		ret = -EIO;
+
+	bio_put(bio);
+	return ret;
 }
 
 static int hfsplus_read_mdb(void *bufptr, struct hfsplus_wd *wd)


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