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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 <mustafa.ismail@intelcom>
Signed-off-by: Henry Orosco <henry.orosco@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Mustafa Ismail 2017-05-10 23:32:14 -05:00 committed by Doug Ledford
parent b117f47963
commit c0c643e16f
1 changed files with 13 additions and 7 deletions
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20
drivers/infiniband/hw/i40iw/i40iw_main.c
View File

@ -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;
}
/**