diff options
| -rw-r--r-- | drivers/net/tg3.c | 52 |
1 files changed, 23 insertions, 29 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 204c565caa5a..0fa7688ab483 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -12547,7 +12547,8 @@ skip_phy_reset: static void __devinit tg3_read_partno(struct tg3 *tp) { unsigned char vpd_data[TG3_NVM_VPD_LEN]; /* in little-endian format */ - int i; + unsigned int block_end, rosize, len; + int i = 0; u32 magic; if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) || @@ -12569,7 +12570,7 @@ static void __devinit tg3_read_partno(struct tg3 *tp) } } else { ssize_t cnt; - unsigned int pos = 0, i = 0; + unsigned int pos = 0; for (; pos < TG3_NVM_VPD_LEN && i < 3; i++, pos += cnt) { cnt = pci_read_vpd(tp->pdev, pos, @@ -12584,40 +12585,33 @@ static void __devinit tg3_read_partno(struct tg3 *tp) goto out_not_found; } - /* Now parse and find the part number. */ - for (i = 0; i < TG3_NVM_VPD_LEN - 2; ) { - unsigned int block_end, rosize; + i = pci_vpd_find_tag(vpd_data, 0, TG3_NVM_VPD_LEN, + PCI_VPD_LRDT_RO_DATA); + if (i < 0) + goto out_not_found; - i = pci_vpd_find_tag(vpd_data, i, TG3_NVM_VPD_LEN, - PCI_VPD_LRDT_RO_DATA); - if (i < 0) - break; + rosize = pci_vpd_lrdt_size(&vpd_data[i]); + block_end = i + PCI_VPD_LRDT_TAG_SIZE + rosize; + i += PCI_VPD_LRDT_TAG_SIZE; - rosize = pci_vpd_lrdt_size(&vpd_data[i]); - block_end = i + PCI_VPD_LRDT_TAG_SIZE + rosize; - i += PCI_VPD_LRDT_TAG_SIZE; + if (block_end > TG3_NVM_VPD_LEN) + goto out_not_found; - if (block_end > TG3_NVM_VPD_LEN) - goto out_not_found; + i = pci_vpd_find_info_keyword(vpd_data, i, rosize, + PCI_VPD_RO_KEYWORD_PARTNO); + if (i < 0) + goto out_not_found; - i = pci_vpd_find_info_keyword(vpd_data, i, rosize, - PCI_VPD_RO_KEYWORD_PARTNO); - if (i > 0) { - u8 len = pci_vpd_info_field_size(&vpd_data[i]); + len = pci_vpd_info_field_size(&vpd_data[i]); - i += PCI_VPD_INFO_FLD_HDR_SIZE; - if (len > TG3_BPN_SIZE || - (len + i) > TG3_NVM_VPD_LEN) - break; - - memcpy(tp->board_part_number, &vpd_data[i], len); + i += PCI_VPD_INFO_FLD_HDR_SIZE; + if (len > TG3_BPN_SIZE || + (len + i) > TG3_NVM_VPD_LEN) + goto out_not_found; - return; - } + memcpy(tp->board_part_number, &vpd_data[i], len); - /* Part number not found. */ - goto out_not_found; - } + return; out_not_found: if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) |