net/enic: unregister interrupt handler when stopping

enic_disable() wasn't calling rte_intr_disable() or
rte_intr_callback_unregister().  stopping/starting a port would
result in the same interrupt callback being registered multiple
times, which would then cause it to be called multiple times on
every interrupt.

Fixes: fefed3d1e62c ("enic: new driver")

Signed-off-by: Nelson Escobar <neescoba@cisco.com>
Reviewed-by: John Daley <johndale@cisco.com>

diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index eb32ac1..aafdc64 100644 (file)
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -797,6 +797,10 @@ int enic_disable(struct enic *enic)
 
        vnic_intr_mask(&enic->intr);
        (void)vnic_intr_masked(&enic->intr); /* flush write */
+       rte_intr_disable(&enic->pdev->intr_handle);
+       rte_intr_callback_unregister(&enic->pdev->intr_handle,
+                                    enic_intr_handler,
+                                    (void *)enic->rte_dev);
 
        vnic_dev_disable(enic->vdev);