diff mbox series

[4.9,206/271] of: mdio: Fix a signedness bug in of_phy_get_and_connect()

Message ID 20200128135907.887472260@linuxfoundation.org
State Superseded
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman Jan. 28, 2020, 2:05 p.m. UTC 
From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit d7eb651212fdbafa82d485d8e76095ac3b14c193 ]

The "iface" variable is an enum and in this context GCC treats it as
an unsigned int so the error handling is never triggered.

Fixes: b78624125304 ("of_mdio: Abstract a general interface for phy connect")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/of/of_mdio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 262281bd68fa3..1e70851b15308 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -353,7 +353,7 @@  struct phy_device *of_phy_get_and_connect(struct net_device *dev,
 	struct phy_device *phy;
 
 	iface = of_get_phy_mode(np);
-	if (iface < 0)
+	if ((int)iface < 0)
 		return NULL;
 
 	phy_np = of_parse_phandle(np, "phy-handle", 0);