linux-kernel - [PATCH 4.2 096/120] devres: fix devres

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Message-Id: <20150919171726.905732744@linuxfoundation.org>
Date:	Sat, 19 Sep 2015 10:28:56 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Masahiro Yamada <yamada.masahiro@...ionext.com>,
	Tejun Heo <tj@...nel.org>
Subject: [PATCH 4.2 096/120] devres: fix devres_get()

4.2-stable review patch.  If anyone has any objections, please let me know.

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

From: Masahiro Yamada <yamada.masahiro@...ionext.com>

commit 64526370d11ce8868ca495723d595b61e8697fbf upstream.

Currently, devres_get() passes devres_free() the pointer to devres,
but devres_free() should be given with the pointer to resource data.

Fixes: 9ac7849e35f7 ("devres: device resource management")
Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
Acked-by: Tejun Heo <tj@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/base/devres.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -297,10 +297,10 @@ void * devres_get(struct device *dev, vo
 	if (!dr) {
 		add_dr(dev, &new_dr->node);
 		dr = new_dr;
-		new_dr = NULL;
+		new_res = NULL;
 	}
 	spin_unlock_irqrestore(&dev->devres_lock, flags);
-	devres_free(new_dr);
+	devres_free(new_res);
 
 	return dr->data;
 }


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