phy: Find the right match in devm_phy_destroy()

commit 2f1bce487cd0a02623cff3d877940f9a2026341c upstream.

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@nvidia.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index 34d56f7864d6c72e72f7b54fb9ac315c9a182618..86592dd24da5f46d51f582f51f4b7a1cc19e849e 100644 (file)
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -50,7 +50,9 @@ 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;
 }
 
 static struct phy *phy_lookup(struct device *device, const char *port)