rte_intr_callback_unregister() returns the number of unregistered
callbacks on success. Since the close operation started returning
the ret variable instead of 0, this positive value leaks as the
return value of ixgbe_dev_close(), so applications checking
rte_eth_dev_close() != 0 treat a successful close as a failure.

Fixes: 62024eb82756 ("ethdev: change stop operation callback to return int")
Cc: [email protected]
Signed-off-by: SidAli CHERRATI <[email protected]>
---
 drivers/net/intel/ixgbe/ixgbe_ethdev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/intel/ixgbe/ixgbe_ethdev.c 
b/drivers/net/intel/ixgbe/ixgbe_ethdev.c
index c5010f623c..6b1799d7a0 100644
--- a/drivers/net/intel/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/intel/ixgbe/ixgbe_ethdev.c
@@ -3121,6 +3121,7 @@ ixgbe_dev_close(struct rte_eth_dev *dev)
                ret = rte_intr_callback_unregister(intr_handle,
                                ixgbe_dev_interrupt_handler, dev);
                if (ret >= 0 || ret == -ENOENT) {
+                       ret = 0;
                        break;
                } else if (ret != -EAGAIN) {
                        PMD_INIT_LOG(ERR,
-- 
2.34.1

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