lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Sat, 23 Nov 2019 03:25:58 -0500 From: Michael Chan <michael.chan@...adcom.com> To: davem@...emloft.net Cc: netdev@...r.kernel.org, Vasundhara Volam <vasundhara-v.volam@...adcom.com> Subject: [PATCH net-next 03/15] bnxt_en: Do driver unregister cleanup in bnxt_init_one() failure path. From: Vasundhara Volam <vasundhara-v.volam@...adcom.com> In the bnxt_init_one() failure path, if the driver has already called firmware to register the driver, it is not undoing the driver registration. Add this missing step to unregister for correctness, so that the firmware knows that the driver has unloaded. Signed-off-by: Vasundhara Volam <vasundhara-v.volam@...adcom.com> Signed-off-by: Michael Chan <michael.chan@...adcom.com> --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 13 ++++++++++--- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 + 2 files changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 14b6104..464e8bd 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -4483,9 +4483,12 @@ static int bnxt_hwrm_func_drv_rgtr(struct bnxt *bp) mutex_lock(&bp->hwrm_cmd_lock); rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); - if (!rc && (resp->flags & - cpu_to_le32(FUNC_DRV_RGTR_RESP_FLAGS_IF_CHANGE_SUPPORTED))) - bp->fw_cap |= BNXT_FW_CAP_IF_CHANGE; + if (!rc) { + set_bit(BNXT_STATE_DRV_REGISTERED, &bp->state); + if (resp->flags & + cpu_to_le32(FUNC_DRV_RGTR_RESP_FLAGS_IF_CHANGE_SUPPORTED)) + bp->fw_cap |= BNXT_FW_CAP_IF_CHANGE; + } mutex_unlock(&bp->hwrm_cmd_lock); return rc; } @@ -4494,6 +4497,9 @@ static int bnxt_hwrm_func_drv_unrgtr(struct bnxt *bp) { struct hwrm_func_drv_unrgtr_input req = {0}; + if (!test_and_clear_bit(BNXT_STATE_DRV_REGISTERED, &bp->state)) + return 0; + bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_DRV_UNRGTR, -1, -1); return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); } @@ -11864,6 +11870,7 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) bnxt_clear_int_mode(bp); init_err_pci_clean: + bnxt_hwrm_func_drv_unrgtr(bp); bnxt_free_hwrm_short_cmd_req(bp); bnxt_free_hwrm_resources(bp); bnxt_free_ctx_mem(bp); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index e07311e..a38664eef 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -1646,6 +1646,7 @@ struct bnxt { #define BNXT_STATE_IN_FW_RESET 4 #define BNXT_STATE_ABORT_ERR 5 #define BNXT_STATE_FW_FATAL_COND 6 +#define BNXT_STATE_DRV_REGISTERED 7 struct bnxt_irq *irq_tbl; int total_irqs; -- 2.5.1
Powered by blists - more mailing lists