net: zynq_gem: Initialize val variable in zynq_gem_miiphy_read()

phyread can timeout and val will contain random value. Initialize it to
zero not to report random value in case of error.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index a817f2e5d69ba247430a1f6e7316d0341d4d7941..d1138fe0903df9745811917d38526b04c96c4bb3 100644 (file)
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -609,7 +609,7 @@ static int zynq_gem_miiphy_read(struct mii_dev *bus, int addr,
 {
        struct zynq_gem_priv *priv = bus->priv;
        int ret;
-       u16 val;
+       u16 val = 0;
 
        ret = phyread(priv, addr, reg, &val);
        debug("%s 0x%x, 0x%x, 0x%x, 0x%x\n", __func__, addr, reg, val, ret);