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| author | Wolfgang Wegner <w.wegner@astro-kom.de> | 2010-04-06 11:13:02 +0200 |
|---|---|---|
| committer | Ben Warren <biggerbadderben@gmail.com> | 2010-05-03 14:52:48 -0700 |
| commit | 33f684d6d512992ed1ae37ec46e76bdeb0773bac (patch) | |
| tree | 9fba35265fccc20d469d22d934c5f81b116b9f3d | |
| parent | 23c34af48ff0dbff3bbaa8e94df3bf40350a709f (diff) | |
| download | u-boot-33f684d6d512992ed1ae37ec46e76bdeb0773bac.tar.gz u-boot-33f684d6d512992ed1ae37ec46e76bdeb0773bac.tar.xz u-boot-33f684d6d512992ed1ae37ec46e76bdeb0773bac.zip | |
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>
| -rw-r--r-- | drivers/net/mcfmii.c | 45 |
1 files changed, 23 insertions, 22 deletions
diff --git a/drivers/net/mcfmii.c b/drivers/net/mcfmii.c index 4acc29e42c..060bdd7397 100644 --- a/drivers/net/mcfmii.c +++ b/drivers/net/mcfmii.c @@ -175,38 +175,39 @@ 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; - } + strcpy(info->phy_name, phyinfo[i].strid); + info->phyname_init = 1; + found = 1; + break; } + } - if (!found) { + if (!found) { #ifdef ET_DEBUG - printf("0x%08x\n", phytype); + printf("0x%08x\n", phytype); #endif - strcpy(info->phy_name, "unknown"); - info->phyname_init = 1; - break; - } + strcpy(info->phy_name, "unknown"); + info->phyname_init = 1; + break; } } } |