[PATCH 1/1] net: ena_netdev: fix resource leak

[Xiaohui Zhang]

Similar to the handling of u132_hcd_init in commit f276e002793c
("usb: u132-hcd: fix resource leak"), we thought a patch might be
needed here as well.

If platform_driver_register fails, cleanup the allocated resource
gracefully.

Signed-off-by: Xiaohui Zhang <xiaohuizhang@xxxxxxxxxx>
---
 drivers/net/ethernet/amazon/ena/ena_netdev.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 6a356a6cee15..c0624ee8d867 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -4545,13 +4545,17 @@ static struct pci_driver ena_pci_driver = {
 
 static int __init ena_init(void)
 {
+	int retval;
 	ena_wq = create_singlethread_workqueue(DRV_MODULE_NAME);
 	if (!ena_wq) {
 		pr_err("Failed to create workqueue\n");
 		return -ENOMEM;
 	}
+	retval = pci_register_driver(&ena_pci_driver);
+	if (retval)
+		destroy_workqueue(ena_wq);
 
-	return pci_register_driver(&ena_pci_driver);
+	return retval;
 }
 
 static void __exit ena_cleanup(void)
-- 
2.17.1