[U-Boot] [PATCH v2 3/3] net: miiphybb: fix casting error

[Chris Brandt]

Since the return value is a signed int, if the leading MSB of rdreg is a 1,
it will get signed extended and will return a negative value which is an
error even though we read the correct value.

Fixes: dfcc496ed7e2 ("net: mii: Changes not made by spatch")
Signed-off-by: Chris Brandt <chris.brandt at renesas.com>
---
 drivers/net/phy/miiphybb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/miiphybb.c b/drivers/net/phy/miiphybb.c
index af676b9bae..d61722490e 100644
--- a/drivers/net/phy/miiphybb.c
+++ b/drivers/net/phy/miiphybb.c
@@ -232,7 +232,7 @@ static void miiphy_pre(struct bb_miiphy_bus *bus, char read,
  */
 int bb_miiphy_read(struct mii_dev *miidev, int addr, int devad, int reg)
 {
-	short rdreg; /* register working value */
+	unsigned short rdreg; /* register working value */
 	int v;
 	int j; /* counter */
 	struct bb_miiphy_bus *bus;
-- 
2.14.1