linux-kernel - [PATCH 13/20] phy: Find the right match in devm_phy

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Date:	Fri, 13 Mar 2015 17:31:50 +0530
From:	Kishon Vijay Abraham I <kishon@...com>
To:	<gregkh@...uxfoundation.org>
CC:	<kishon@...com>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 13/20] phy: Find the right match in devm_phy_destroy()

From: Thierry Reding <treding@...dia.com>

devm_phy_create() stores the pointer to the new PHY at the address
returned by devres_alloc(). The res parameter passed to devm_phy_match()
is therefore the location where the pointer to the PHY is stored, hence
it needs to be dereferenced before comparing to the match data in order
to find the correct match.

Signed-off-by: Thierry Reding <treding@...dia.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
Cc: <stable@...r.kernel.org> # v3.13+
---
 drivers/phy/phy-core.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index a12d353..04fc84f 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -52,7 +52,9 @@ static void devm_phy_consume(struct device *dev, void *res)
 
 static int devm_phy_match(struct device *dev, void *res, void *match_data)
 {
-	return res == match_data;
+	struct phy **phy = res;
+
+	return *phy == match_data;
 }
 
 /**
-- 
1.7.9.5

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