diff options
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/atheros/atl1c/atl1c_main.c | 71 | ||||
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 12 | ||||
| -rw-r--r-- | drivers/net/ethernet/cadence/macb.c | 5 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c | 7 | ||||
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169.c | 86 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c | 10 |
8 files changed, 108 insertions, 86 deletions
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c index 56d3f697e0c7..0035c01660b6 100644 --- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c +++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c @@ -21,7 +21,7 @@ #include "atl1c.h" -#define ATL1C_DRV_VERSION "1.0.1.0-NAPI" +#define ATL1C_DRV_VERSION "1.0.1.1-NAPI" char atl1c_driver_name[] = "atl1c"; char atl1c_driver_version[] = ATL1C_DRV_VERSION; @@ -1652,6 +1652,7 @@ static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter) u16 num_alloc = 0; u16 rfd_next_to_use, next_next; struct atl1c_rx_free_desc *rfd_desc; + dma_addr_t mapping; next_next = rfd_next_to_use = rfd_ring->next_to_use; if (++next_next == rfd_ring->count) @@ -1678,9 +1679,18 @@ static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter) ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_BUSY); buffer_info->skb = skb; buffer_info->length = adapter->rx_buffer_len; - buffer_info->dma = pci_map_single(pdev, vir_addr, + mapping = pci_map_single(pdev, vir_addr, buffer_info->length, PCI_DMA_FROMDEVICE); + if (unlikely(pci_dma_mapping_error(pdev, mapping))) { + dev_kfree_skb(skb); + buffer_info->skb = NULL; + buffer_info->length = 0; + ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_FREE); + netif_warn(adapter, rx_err, adapter->netdev, "RX pci_map_single failed"); + break; + } + buffer_info->dma = mapping; ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_SINGLE, ATL1C_PCIMAP_FROMDEVICE); rfd_desc->buffer_addr = cpu_to_le64(buffer_info->dma); @@ -2015,7 +2025,29 @@ check_sum: return 0; } -static void atl1c_tx_map(struct atl1c_adapter *adapter, +static void atl1c_tx_rollback(struct atl1c_adapter *adpt, + struct atl1c_tpd_desc *first_tpd, + enum atl1c_trans_queue type) +{ + struct atl1c_tpd_ring *tpd_ring = &adpt->tpd_ring[type]; + struct atl1c_buffer *buffer_info; + struct atl1c_tpd_desc *tpd; + u16 first_index, index; + + first_index = first_tpd - (struct atl1c_tpd_desc *)tpd_ring->desc; + index = first_index; + while (index != tpd_ring->next_to_use) { + tpd = ATL1C_TPD_DESC(tpd_ring, index); + buffer_info = &tpd_ring->buffer_info[index]; + atl1c_clean_buffer(adpt->pdev, buffer_info, 0); + memset(tpd, 0, sizeof(struct atl1c_tpd_desc)); + if (++index == tpd_ring->count) + index = 0; + } + tpd_ring->next_to_use = first_index; +} + +static int atl1c_tx_map(struct atl1c_adapter *adapter, struct sk_buff *skb, struct atl1c_tpd_desc *tpd, enum atl1c_trans_queue type) { @@ -2040,7 +2072,10 @@ static void atl1c_tx_map(struct atl1c_adapter *adapter, buffer_info->length = map_len; buffer_info->dma = pci_map_single(adapter->pdev, skb->data, hdr_len, PCI_DMA_TODEVICE); - ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_BUSY); + if (unlikely(pci_dma_mapping_error(adapter->pdev, + buffer_info->dma))) + goto err_dma; + ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_SINGLE, ATL1C_PCIMAP_TODEVICE); mapped_len += map_len; @@ -2062,6 +2097,10 @@ static void atl1c_tx_map(struct atl1c_adapter *adapter, buffer_info->dma = pci_map_single(adapter->pdev, skb->data + mapped_len, buffer_info->length, PCI_DMA_TODEVICE); + if (unlikely(pci_dma_mapping_error(adapter->pdev, + buffer_info->dma))) + goto err_dma; + ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_BUSY); ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_SINGLE, ATL1C_PCIMAP_TODEVICE); @@ -2083,6 +2122,9 @@ static void atl1c_tx_map(struct atl1c_adapter *adapter, frag, 0, buffer_info->length, DMA_TO_DEVICE); + if (dma_mapping_error(&adapter->pdev->dev, buffer_info->dma)) + goto err_dma; + ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_BUSY); ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_PAGE, ATL1C_PCIMAP_TODEVICE); @@ -2095,6 +2137,13 @@ static void atl1c_tx_map(struct atl1c_adapter *adapter, /* The last buffer info contain the skb address, so it will be free after unmap */ buffer_info->skb = skb; + + return 0; + +err_dma: + buffer_info->dma = 0; + buffer_info->length = 0; + return -1; } static void atl1c_tx_queue(struct atl1c_adapter *adapter, struct sk_buff *skb, @@ -2157,10 +2206,18 @@ static netdev_tx_t atl1c_xmit_frame(struct sk_buff *skb, if (skb_network_offset(skb) != ETH_HLEN) tpd->word1 |= 1 << TPD_ETH_TYPE_SHIFT; /* Ethernet frame */ - atl1c_tx_map(adapter, skb, tpd, type); - atl1c_tx_queue(adapter, skb, tpd, type); + if (atl1c_tx_map(adapter, skb, tpd, type) < 0) { + netif_info(adapter, tx_done, adapter->netdev, + "tx-skb droppted due to dma error\n"); + /* roll back tpd/buffer */ + atl1c_tx_rollback(adapter, tpd, type); + spin_unlock_irqrestore(&adapter->tx_lock, flags); + dev_kfree_skb(skb); + } else { + atl1c_tx_queue(adapter, skb, tpd, type); + spin_unlock_irqrestore(&adapter->tx_lock, flags); + } - spin_unlock_irqrestore(&adapter->tx_lock, flags); return NETDEV_TX_OK; } diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index f771ddfba646..a5edac8df67b 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -504,13 +504,11 @@ static int bnx2x_fill_frag_skb(struct bnx2x *bp, struct bnx2x_fastpath *fp, skb_shinfo(skb)->gso_size = bnx2x_set_lro_mss(bp, tpa_info->parsing_flags, len_on_bd); - /* set for GRO */ - if (fp->mode == TPA_MODE_GRO) - skb_shinfo(skb)->gso_type = - (GET_FLAG(tpa_info->parsing_flags, - PARSING_FLAGS_OVER_ETHERNET_PROTOCOL) == - PRS_FLAG_OVERETH_IPV6) ? - SKB_GSO_TCPV6 : SKB_GSO_TCPV4; + skb_shinfo(skb)->gso_type = + (GET_FLAG(tpa_info->parsing_flags, + PARSING_FLAGS_OVER_ETHERNET_PROTOCOL) == + PRS_FLAG_OVERETH_IPV6) ? + SKB_GSO_TCPV6 : SKB_GSO_TCPV4; } diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c index a9b0830fb39d..b9d4bb9530e5 100644 --- a/drivers/net/ethernet/cadence/macb.c +++ b/drivers/net/ethernet/cadence/macb.c @@ -693,6 +693,11 @@ static int macb_poll(struct napi_struct *napi, int budget) * get notified when new packets arrive. */ macb_writel(bp, IER, MACB_RX_INT_FLAGS); + + /* Packets received while interrupts were disabled */ + status = macb_readl(bp, RSR); + if (unlikely(status)) + napi_reschedule(napi); } /* TODO: Handle errors */ diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 20a5af6d87d0..b3e3294cfe53 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -1401,6 +1401,7 @@ static void ixgbe_set_rsc_gso_size(struct ixgbe_ring *ring, /* set gso_size to avoid messing up TCP MSS */ skb_shinfo(skb)->gso_size = DIV_ROUND_UP((skb->len - hdr_len), IXGBE_CB(skb)->append_cnt); + skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; } static void ixgbe_update_rsc_stats(struct ixgbe_ring *rx_ring, diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c index 6f82812d0fab..09aa310b6194 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c @@ -986,8 +986,13 @@ qlcnic_process_lro(struct qlcnic_adapter *adapter, th->seq = htonl(seq_number); length = skb->len; - if (adapter->flags & QLCNIC_FW_LRO_MSS_CAP) + if (adapter->flags & QLCNIC_FW_LRO_MSS_CAP) { skb_shinfo(skb)->gso_size = qlcnic_get_lro_sts_mss(sts_data1); + if (skb->protocol == htons(ETH_P_IPV6)) + skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6; + else + skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; + } if (vid != 0xffff) __vlan_hwaccel_put_tag(skb, vid); diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 11702324a071..998974f78742 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -450,7 +450,6 @@ enum rtl8168_registers { #define PWM_EN (1 << 22) #define RXDV_GATED_EN (1 << 19) #define EARLY_TALLY_EN (1 << 16) -#define FORCE_CLK (1 << 15) /* force clock request */ }; enum rtl_register_content { @@ -514,7 +513,6 @@ enum rtl_register_content { PMEnable = (1 << 0), /* Power Management Enable */ /* Config2 register p. 25 */ - ClkReqEn = (1 << 7), /* Clock Request Enable */ MSIEnable = (1 << 5), /* 8169 only. Reserved in the 8168. */ PCI_Clock_66MHz = 0x01, PCI_Clock_33MHz = 0x00, @@ -535,7 +533,6 @@ enum rtl_register_content { Spi_en = (1 << 3), LanWake = (1 << 1), /* LanWake enable/disable */ PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */ - ASPM_en = (1 << 0), /* ASPM enable */ /* TBICSR p.28 */ TBIReset = 0x80000000, @@ -684,7 +681,6 @@ enum features { RTL_FEATURE_WOL = (1 << 0), RTL_FEATURE_MSI = (1 << 1), RTL_FEATURE_GMII = (1 << 2), - RTL_FEATURE_FW_LOADED = (1 << 3), }; struct rtl8169_counters { @@ -2389,10 +2385,8 @@ static void rtl_apply_firmware(struct rtl8169_private *tp) struct rtl_fw *rtl_fw = tp->rtl_fw; /* TODO: release firmware once rtl_phy_write_fw signals failures. */ - if (!IS_ERR_OR_NULL(rtl_fw)) { + if (!IS_ERR_OR_NULL(rtl_fw)) rtl_phy_write_fw(tp, rtl_fw); - tp->features |= RTL_FEATURE_FW_LOADED; - } } static void rtl_apply_firmware_cond(struct rtl8169_private *tp, u8 reg, u16 val) @@ -2403,31 +2397,6 @@ static void rtl_apply_firmware_cond(struct rtl8169_private *tp, u8 reg, u16 val) rtl_apply_firmware(tp); } -static void r810x_aldps_disable(struct rtl8169_private *tp) -{ - rtl_writephy(tp, 0x1f, 0x0000); - rtl_writephy(tp, 0x18, 0x0310); - msleep(100); -} - -static void r810x_aldps_enable(struct rtl8169_private *tp) -{ - if (!(tp->features & RTL_FEATURE_FW_LOADED)) - return; - - rtl_writephy(tp, 0x1f, 0x0000); - rtl_writephy(tp, 0x18, 0x8310); -} - -static void r8168_aldps_enable_1(struct rtl8169_private *tp) -{ - if (!(tp->features & RTL_FEATURE_FW_LOADED)) - return; - - rtl_writephy(tp, 0x1f, 0x0000); - rtl_w1w0_phy(tp, 0x15, 0x1000, 0x0000); -} - static void rtl8169s_hw_phy_config(struct rtl8169_private *tp) { static const struct phy_reg phy_reg_init[] = { @@ -3218,8 +3187,6 @@ static void rtl8168e_2_hw_phy_config(struct rtl8169_private *tp) rtl_w1w0_phy(tp, 0x10, 0x0000, 0x0400); rtl_writephy(tp, 0x1f, 0x0000); - r8168_aldps_enable_1(tp); - /* Broken BIOS workaround: feed GigaMAC registers with MAC address. */ rtl_rar_exgmac_set(tp, tp->dev->dev_addr); } @@ -3294,8 +3261,6 @@ static void rtl8168f_1_hw_phy_config(struct rtl8169_private *tp) rtl_writephy(tp, 0x05, 0x8b85); rtl_w1w0_phy(tp, 0x06, 0x4000, 0x0000); rtl_writephy(tp, 0x1f, 0x0000); - - r8168_aldps_enable_1(tp); } static void rtl8168f_2_hw_phy_config(struct rtl8169_private *tp) @@ -3303,8 +3268,6 @@ static void rtl8168f_2_hw_phy_config(struct rtl8169_private *tp) rtl_apply_firmware(tp); rtl8168f_hw_phy_config(tp); - - r8168_aldps_enable_1(tp); } static void rtl8411_hw_phy_config(struct rtl8169_private *tp) @@ -3402,8 +3365,6 @@ static void rtl8411_hw_phy_config(struct rtl8169_private *tp) rtl_w1w0_phy(tp, 0x19, 0x0000, 0x0001); rtl_w1w0_phy(tp, 0x10, 0x0000, 0x0400); rtl_writephy(tp, 0x1f, 0x0000); - - r8168_aldps_enable_1(tp); } static void rtl8168g_1_hw_phy_config(struct rtl8169_private *tp) @@ -3489,19 +3450,21 @@ static void rtl8105e_hw_phy_config(struct rtl8169_private *tp) }; /* Disable ALDPS before ram code */ - r810x_aldps_disable(tp); + rtl_writephy(tp, 0x1f, 0x0000); + rtl_writephy(tp, 0x18, 0x0310); + msleep(100); rtl_apply_firmware(tp); rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init)); - - r810x_aldps_enable(tp); } static void rtl8402_hw_phy_config(struct rtl8169_private *tp) { /* Disable ALDPS before setting firmware */ - r810x_aldps_disable(tp); + rtl_writephy(tp, 0x1f, 0x0000); + rtl_writephy(tp, 0x18, 0x0310); + msleep(20); rtl_apply_firmware(tp); @@ -3511,8 +3474,6 @@ static void rtl8402_hw_phy_config(struct rtl8169_private *tp) rtl_writephy(tp, 0x10, 0x401f); rtl_writephy(tp, 0x19, 0x7030); rtl_writephy(tp, 0x1f, 0x0000); - - r810x_aldps_enable(tp); } static void rtl8106e_hw_phy_config(struct rtl8169_private *tp) @@ -3525,7 +3486,9 @@ static void rtl8106e_hw_phy_config(struct rtl8169_private *tp) }; /* Disable ALDPS before ram code */ - r810x_aldps_disable(tp); + rtl_writephy(tp, 0x1f, 0x0000); + rtl_writephy(tp, 0x18, 0x0310); + msleep(100); rtl_apply_firmware(tp); @@ -3533,8 +3496,6 @@ static void rtl8106e_hw_phy_config(struct rtl8169_private *tp) rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init)); rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x0000, ERIAR_EXGMAC); - - r810x_aldps_enable(tp); } static void rtl_hw_phy_config(struct net_device *dev) @@ -5051,6 +5012,8 @@ static void rtl_hw_start_8168e_2(struct rtl8169_private *tp) RTL_W8(MaxTxPacketSize, EarlySize); + rtl_disable_clock_request(pdev); + RTL_W32(TxConfig, RTL_R32(TxConfig) | TXCFG_AUTO_FIFO); RTL_W8(MCU, RTL_R8(MCU) & ~NOW_IS_OOB); @@ -5059,8 +5022,7 @@ static void rtl_hw_start_8168e_2(struct rtl8169_private *tp) RTL_W8(DLLPR, RTL_R8(DLLPR) | PFM_EN); RTL_W32(MISC, RTL_R32(MISC) | PWM_EN); - RTL_W8(Config5, (RTL_R8(Config5) & ~Spi_en) | ASPM_en); - RTL_W8(Config2, RTL_R8(Config2) | ClkReqEn); + RTL_W8(Config5, RTL_R8(Config5) & ~Spi_en); } static void rtl_hw_start_8168f(struct rtl8169_private *tp) @@ -5085,12 +5047,13 @@ static void rtl_hw_start_8168f(struct rtl8169_private *tp) RTL_W8(MaxTxPacketSize, EarlySize); + rtl_disable_clock_request(pdev); + RTL_W32(TxConfig, RTL_R32(TxConfig) | TXCFG_AUTO_FIFO); RTL_W8(MCU, RTL_R8(MCU) & ~NOW_IS_OOB); RTL_W8(DLLPR, RTL_R8(DLLPR) | PFM_EN); - RTL_W32(MISC, RTL_R32(MISC) | PWM_EN | FORCE_CLK); - RTL_W8(Config5, (RTL_R8(Config5) & ~Spi_en) | ASPM_en); - RTL_W8(Config2, RTL_R8(Config2) | ClkReqEn); + RTL_W32(MISC, RTL_R32(MISC) | PWM_EN); + RTL_W8(Config5, RTL_R8(Config5) & ~Spi_en); } static void rtl_hw_start_8168f_1(struct rtl8169_private *tp) @@ -5147,10 +5110,8 @@ static void rtl_hw_start_8168g_1(struct rtl8169_private *tp) rtl_w1w0_eri(tp, 0xdc, ERIAR_MASK_0001, 0x01, 0x00, ERIAR_EXGMAC); RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); - RTL_W32(MISC, (RTL_R32(MISC) | FORCE_CLK) & ~RXDV_GATED_EN); + RTL_W32(MISC, RTL_R32(MISC) & ~RXDV_GATED_EN); RTL_W8(MaxTxPacketSize, EarlySize); - RTL_W8(Config5, RTL_R8(Config5) | ASPM_en); - RTL_W8(Config2, RTL_R8(Config2) | ClkReqEn); rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000, ERIAR_EXGMAC); rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000, ERIAR_EXGMAC); @@ -5366,9 +5327,6 @@ static void rtl_hw_start_8105e_1(struct rtl8169_private *tp) RTL_W8(MCU, RTL_R8(MCU) | EN_NDP | EN_OOB_RESET); RTL_W8(DLLPR, RTL_R8(DLLPR) | PFM_EN); - RTL_W8(Config5, RTL_R8(Config5) | ASPM_en); - RTL_W8(Config2, RTL_R8(Config2) | ClkReqEn); - RTL_W32(MISC, RTL_R32(MISC) | FORCE_CLK); rtl_ephy_init(tp, e_info_8105e_1, ARRAY_SIZE(e_info_8105e_1)); } @@ -5394,9 +5352,6 @@ static void rtl_hw_start_8402(struct rtl8169_private *tp) RTL_W32(TxConfig, RTL_R32(TxConfig) | TXCFG_AUTO_FIFO); RTL_W8(MCU, RTL_R8(MCU) & ~NOW_IS_OOB); - RTL_W8(Config5, RTL_R8(Config5) | ASPM_en); - RTL_W8(Config2, RTL_R8(Config2) | ClkReqEn); - RTL_W32(MISC, RTL_R32(MISC) | FORCE_CLK); rtl_ephy_init(tp, e_info_8402, ARRAY_SIZE(e_info_8402)); @@ -5418,10 +5373,7 @@ static void rtl_hw_start_8106(struct rtl8169_private *tp) /* Force LAN exit from ASPM if Rx/Tx are not idle */ RTL_W32(FuncEvent, RTL_R32(FuncEvent) | 0x002800); - RTL_W32(MISC, - (RTL_R32(MISC) | DISABLE_LAN_EN | FORCE_CLK) & ~EARLY_TALLY_EN); - RTL_W8(Config5, RTL_R8(Config5) | ASPM_en); - RTL_W8(Config2, RTL_R8(Config2) | ClkReqEn); + RTL_W32(MISC, (RTL_R32(MISC) | DISABLE_LAN_EN) & ~EARLY_TALLY_EN); RTL_W8(MCU, RTL_R8(MCU) | EN_NDP | EN_OOB_RESET); RTL_W8(DLLPR, RTL_R8(DLLPR) & ~PFM_EN); } diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index f07c0612abf6..b75f4b286895 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -69,7 +69,7 @@ #undef STMMAC_XMIT_DEBUG /*#define STMMAC_XMIT_DEBUG*/ -#ifdef STMMAC_TX_DEBUG +#ifdef STMMAC_XMIT_DEBUG #define TX_DBG(fmt, args...) printk(fmt, ## args) #else #define TX_DBG(fmt, args...) do { } while (0) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c index 0376a5e6b2bf..0b9829fe3eea 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c @@ -188,8 +188,6 @@ int stmmac_mdio_register(struct net_device *ndev) goto bus_register_fail; } - priv->mii = new_bus; - found = 0; for (addr = 0; addr < PHY_MAX_ADDR; addr++) { struct phy_device *phydev = new_bus->phy_map[addr]; @@ -237,8 +235,14 @@ int stmmac_mdio_register(struct net_device *ndev) } } - if (!found) + if (!found) { pr_warning("%s: No PHY found\n", ndev->name); + mdiobus_unregister(new_bus); + mdiobus_free(new_bus); + return -ENODEV; + } + + priv->mii = new_bus; return 0; |