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mdio: mux: fix an incorrect less than zero error check using a u32

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The u32 variable v is being checked to see if an error return is
less than zero and this check has no effect because it is unsigned.
Fix this by making v and int (this also matches the type of
cb->bus_number which is assigned to the value in v).

Detected by CoverityScan, CID#1440454 ("Unsigned compared against zero")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Colin Ian King 2017-06-05 19:08:04 +01:00 committed by David S. Miller
parent 2f878491b3
commit 9d15e5cc8c
1 changed files with 1 additions and 1 deletions
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drivers/net/phy/mdio-mux.c
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@ -133,7 +133,7 @@ int mdio_mux_init(struct device *dev,
ret_val = -ENODEV;
for_each_available_child_of_node(dev->of_node, child_bus_node) {
u32 v;
int v;
v = of_mdio_parse_addr(dev, child_bus_node);
if (v < 0) {