From c0c643e16f9b00332cbbf3954556652dfa4ed5a3 Mon Sep 17 00:00:00 2001 From: Mustafa Ismail Date: Wed, 10 May 2017 23:32:14 -0500 Subject: [PATCH] RDMA/i40iw: Fix device initialization error path Some error paths in i40iw_initialize_dev are doing additional and unnecessary work before exiting. Correctly free resources allocated prior to error and return with correct status code. Signed-off-by: Mustafa Ismail Signed-off-by: Henry Orosco Signed-off-by: Doug Ledford --- drivers/infiniband/hw/i40iw/i40iw_main.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/drivers/infiniband/hw/i40iw/i40iw_main.c b/drivers/infiniband/hw/i40iw/i40iw_main.c index 2728af3103ce..a3f18a22f5ed 100644 --- a/drivers/infiniband/hw/i40iw/i40iw_main.c +++ b/drivers/infiniband/hw/i40iw/i40iw_main.c @@ -1319,13 +1319,13 @@ static enum i40iw_status_code i40iw_initialize_dev(struct i40iw_device *iwdev, status = i40iw_obj_aligned_mem(iwdev, &mem, I40IW_QUERY_FPM_BUF_SIZE, I40IW_FPM_QUERY_BUF_ALIGNMENT_MASK); if (status) - goto exit; + goto error; info.fpm_query_buf_pa = mem.pa; info.fpm_query_buf = mem.va; status = i40iw_obj_aligned_mem(iwdev, &mem, I40IW_COMMIT_FPM_BUF_SIZE, I40IW_FPM_COMMIT_BUF_ALIGNMENT_MASK); if (status) - goto exit; + goto error; info.fpm_commit_buf_pa = mem.pa; info.fpm_commit_buf = mem.va; info.hmc_fn_id = ldev->fid; @@ -1347,11 +1347,9 @@ static enum i40iw_status_code i40iw_initialize_dev(struct i40iw_device *iwdev, info.exception_lan_queue = 1; info.vchnl_send = i40iw_virtchnl_send; status = i40iw_device_init(&iwdev->sc_dev, &info); -exit: - if (status) { - kfree(iwdev->hmc_info_mem); - iwdev->hmc_info_mem = NULL; - } + + if (status) + goto error; memset(&vsi_info, 0, sizeof(vsi_info)); vsi_info.dev = &iwdev->sc_dev; vsi_info.back_vsi = (void *)iwdev; @@ -1362,11 +1360,19 @@ exit: memset(&stats_info, 0, sizeof(stats_info)); stats_info.fcn_id = ldev->fid; stats_info.pestat = kzalloc(sizeof(*stats_info.pestat), GFP_KERNEL); + if (!stats_info.pestat) { + status = I40IW_ERR_NO_MEMORY; + goto error; + } stats_info.stats_initialize = true; if (stats_info.pestat) i40iw_vsi_stats_init(&iwdev->vsi, &stats_info); } return status; +error: + kfree(iwdev->hmc_info_mem); + iwdev->hmc_info_mem = NULL; + return status; } /** -- 2.20.1