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

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Date:	Wed, 25 Feb 2015 16:16:29 +0100
From:	Thierry Reding <thierry.reding@...il.com>
To:	Kishon Vijay Abraham I <kishon@...com>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] 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>
---
 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 a12d35338313..04fc84f2b289 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;
 }
 
 /**
-- 
2.1.3

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