net/nfp: unregister interrupt callback when closing

With an app using hotplug feature, when a device is unplugged without
unregistering makes the interrupt handling unstable.

Fixes: 6c53f87b3497 ("nfp: add link status interrupt")

Signed-off-by: Alejandro Lucero <alejandro.lucero@netronome.com>

diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
index 9b05bac..d526f34 100644 (file)
--- a/drivers/net/nfp/nfp_net.c
+++ b/drivers/net/nfp/nfp_net.c
@@ -733,6 +733,11 @@ nfp_net_close(struct rte_eth_dev *dev)
        rte_intr_disable(&dev->pci_dev->intr_handle);
        nn_cfg_writeb(hw, NFP_NET_CFG_LSC, 0xff);
 
+       /* unregister callback func from eal lib */
+       rte_intr_callback_unregister(&dev->pci_dev->intr_handle,
+                                    nfp_net_dev_interrupt_handler,
+                                    (void *)dev);
+
        /*
         * The ixgbe PMD driver disables the pcie master on the
         * device. The i40e does not...