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fix lockup in mcfmii/mii_discover_phy() in case communication fails 

Signed-off-by: Wolfgang Wegner <w.wegner@astro-kom.de>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
This commit is contained in:
Wolfgang Wegner 2010-04-06 11:13:02 +02:00 committed by Ben Warren
parent 23c34af48f
commit 33f684d6d5
1 changed files with 24 additions and 23 deletions
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47
drivers/net/mcfmii.c
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@ -175,39 +175,40 @@ int mii_discover_phy(struct eth_device *dev)
#ifdef ET_DEBUG
printf("PHY type 0x%x pass %d type\n", phytype, pass);
#endif
if (phytype != 0xffff) {
phyaddr = phyno;
phytype <<= 16;
phytype |=
mii_send(mk_mii_read(phyno, PHY_PHYIDR2));
if (phytype == 0xffff)
continue;
phyaddr = phyno;
phytype <<= 16;
phytype |=
mii_send(mk_mii_read(phyno, PHY_PHYIDR2));
#ifdef ET_DEBUG
printf("PHY @ 0x%x pass %d\n", phyno, pass);
printf("PHY @ 0x%x pass %d\n", phyno, pass);
#endif
for (i = 0; i < (sizeof(phyinfo) / sizeof(phy_info_t)); i++) {
if (phyinfo[i].phyid == phytype) {
for (i = 0; (i < (sizeof(phyinfo) / sizeof(phy_info_t)))
&& (phyinfo[i].phyid != 0); i++) {
if (phyinfo[i].phyid == phytype) {
#ifdef ET_DEBUG
printf("phyid %x - %s\n",
phyinfo[i].phyid,
phyinfo[i].strid);
printf("phyid %x - %s\n",
phyinfo[i].phyid,
phyinfo[i].strid);
#endif
strcpy(info->phy_name, phyinfo[i].strid);
info->phyname_init = 1;
found = 1;
break;
}
}
if (!found) {
#ifdef ET_DEBUG
printf("0x%08x\n", phytype);
#endif
strcpy(info->phy_name, "unknown");
strcpy(info->phy_name, phyinfo[i].strid);
info->phyname_init = 1;
found = 1;
break;
}
}
if (!found) {
#ifdef ET_DEBUG
printf("0x%08x\n", phytype);
#endif
strcpy(info->phy_name, "unknown");
info->phyname_init = 1;
break;
}
}
}