linux-kernel - [PATCH 2.6.32 14/38] [PATCH 14/38] devres: fix devres

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Message-Id: <20151129214703.471508630@1wt.eu>
Date:	Sun, 29 Nov 2015 22:47:16 +0100
From:	Willy Tarreau <w@....eu>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Masahiro Yamada <yamada.masahiro@...ionext.com>,
	Tejun Heo <tj@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ben Hutchings <ben@...adent.org.uk>, Willy Tarreau <w@....eu>
Subject: [PATCH 2.6.32 14/38] [PATCH 14/38] devres: fix devres_get()

2.6.32-longterm 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: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
(cherry picked from commit ebc0ae5a7159086a992f7904dc9ad849a13eecfc)
Signed-off-by: Willy Tarreau <w@....eu>
---
 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 05dd307..6d022dc 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -253,10 +253,10 @@ 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;
 }
-- 
1.7.12.2.21.g234cd45.dirty



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