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i40iw: Fail open if there are no available MSI-X vectors 

Check number of available MSI-X vectors for i40iw.
If there are no available vectors, fail the open.

Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Shiraz Saleem 2017-09-19 09:19:09 -05:00 committed by Doug Ledford
parent 01df7f5a77
commit cd9100ca9e
1 changed files with 6 additions and 1 deletions
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7
drivers/infiniband/hw/i40iw/i40iw_main.c
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@ -1400,6 +1400,11 @@ static enum i40iw_status_code i40iw_save_msix_info(struct i40iw_device *iwdev,
u32 i;
u32 size;
if (!ldev->msix_count) {
i40iw_pr_err("No MSI-X vectors\n");
return I40IW_ERR_CONFIG;
}
iwdev->msix_count = ldev->msix_count;
size = sizeof(struct i40iw_msix_vector) * iwdev->msix_count;
@ -1550,7 +1555,7 @@ static enum i40iw_status_code i40iw_setup_init_state(struct i40iw_handler *hdl,
status = i40iw_save_msix_info(iwdev, ldev);
if (status)
goto exit;
return status;
iwdev->hw.dev_context = (void *)ldev->pcidev;
iwdev->hw.hw_addr = ldev->hw_addr;
status = i40iw_allocate_dma_mem(&iwdev->hw,