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of: mdio: Fix a signedness bug in of_phy_get_and_connect()

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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: b786241253 ("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>
This commit is contained in:
Dan Carpenter 2019-09-25 14:01:00 +03:00 committed by David S. Miller
parent 73e211e11b
commit d7eb651212
1 changed files with 1 additions and 1 deletions
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drivers/of/of_mdio.c
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@ -362,7 +362,7 @@ struct phy_device *of_phy_get_and_connect(struct net_device *dev,
int ret;
iface = of_get_phy_mode(np);
if (iface < 0)
if ((int)iface < 0)
return NULL;
if (of_phy_is_fixed_link(np)) {
ret = of_phy_register_fixed_link(np);