linux-kernel - [PATCH 3.12 27/84] devres: fix devres

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Message-Id: <1e412fe3df4d27eb150e45504d8c0795fda083cb.1443792303.git.jslaby@suse.cz>
Date:	Fri,  2 Oct 2015 15:24:32 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Masahiro Yamada <yamada.masahiro@...ionext.com>,
	Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 27/84] devres: fix devres_get()

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

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

===============

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: Jiri Slaby <jslaby@...e.cz>
---
 drivers/base/devres.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 507379e7b763..4e2fb405da87 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -296,10 +296,10 @@ void * devres_get(struct device *dev, void *new_res,
 	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;
 }
-- 
2.6.0

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