[PATCH v0 1/1] net/octeon_ep: handle interrupt enable failure

[Vamsi Krishna]

From: Vamsi Attunuru <vattun...@marvell.com>

Patch checks the return value of interrupt enable
and returns gracefully if file handler is not available.

Cc: sta...@dpdk.org

Signed-off-by: Vamsi Attunuru <vattun...@marvell.com>
---
 drivers/net/octeon_ep/otx_ep_mbox.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/octeon_ep/otx_ep_mbox.c 
b/drivers/net/octeon_ep/otx_ep_mbox.c
index 1d7e08d2cc..c83bb81474 100644
--- a/drivers/net/octeon_ep/otx_ep_mbox.c
+++ b/drivers/net/octeon_ep/otx_ep_mbox.c
@@ -355,16 +355,22 @@ otx_ep_mbox_init(struct rte_eth_dev *eth_dev)
        struct otx_ep_device *otx_ep = (struct otx_ep_device 
*)eth_dev->data->dev_private;
        struct rte_pci_device *pdev = RTE_ETH_DEV_TO_PCI(eth_dev);
        uint64_t reg_val;
+       int rc;
 
        otx_ep_mbox_version_check(otx_ep);
 
        rte_intr_callback_register(pdev->intr_handle, otx_ep_mbox_intr_handler, 
(void *)eth_dev);
 
-       if (rte_intr_enable(pdev->intr_handle)) {
+       rc = rte_intr_enable(pdev->intr_handle);
+
+       if (!(rc == -1 || rc == 0)) {
                otx_ep_err("rte_intr_enable failed");
                return -1;
        }
 
+       if (rc == -1)
+               return 0;
+
        reg_val = otx2_read64(otx_ep->hw_addr + CNXK_EP_R_MBOX_PF_VF_INT(0));
        if (reg_val == UINT64_MAX)
                return -ENODEV;
-- 
2.34.1