Signed-off-by: hpey...@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);
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