[U-Boot] [PATCH] PPC temac phy probe unsigned int underflow fix.

[hpeyerl]

Signed-off-by: hpeyerl at beer.org (Herb Peyerl)

Apologies for the non-git formatted drive-by patch.

If, during phy detection, your phy does not respond, then 
ll_temac_phy_addr() will underflow due to the declaration of local 
variable 'phy' as an unsigned int.


--- drivers/net/xilinx_ll_temac_mdio.c  11 Jul 2012 00:52:14 -0000      
1.1.1.1
+++ drivers/net/xilinx_ll_temac_mdio.c  2 Aug 2012 16:23:48 -0000
@@ -137,7 +137,7 @@
  {
         struct temac_reg *regs = (struct temac_reg *)bus->priv;
         unsigned short val;
-       unsigned int phy;
+       int phy;

         for (phy = PHY_MAX_ADDR; phy >= 0; phy--) {
                 val = ll_temac_local_mdio_read(regs, phy, 0, 
PHY_DETECT_REG);