From cd9100ca9e78eb03bf5a0ee2ba98ebdc8cc5880e Mon Sep 17 00:00:00 2001 From: Shiraz Saleem Date: Tue, 19 Sep 2017 09:19:09 -0500 Subject: [PATCH] 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 Signed-off-by: Doug Ledford --- drivers/infiniband/hw/i40iw/i40iw_main.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/i40iw/i40iw_main.c b/drivers/infiniband/hw/i40iw/i40iw_main.c index cc742c3132c6..5965b59a2f83 100644 --- a/drivers/infiniband/hw/i40iw/i40iw_main.c +++ b/drivers/infiniband/hw/i40iw/i40iw_main.c @@ -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, -- 2.20.1