[PATCH -next] PCI: endpoint: fix missing destroy_workqueue()

[Yang Yingliang]

Add the missing destroy_workqueue() before return from
pci_epf_test_init() in the error handling case and add
destroy_workqueue() in pci_epf_test_exit().

Fixes: 349e7a85b25fa ("PCI: endpoint: functions: Add an EP function to test 
PCI")
Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: Yang Yingliang <yangyingli...@huawei.com>
---
 drivers/pci/endpoint/functions/pci-epf-test.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c 
b/drivers/pci/endpoint/functions/pci-epf-test.c
index 63d5f5c6e3e0..8e24b5e50e4b 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -922,6 +922,7 @@ static int __init pci_epf_test_init(void)
 
        ret = pci_epf_register_driver(&test_driver);
        if (ret) {
+               destroy_workqueue(kpcitest_workqueue);
                pr_err("Failed to register pci epf test driver --> %d\n", ret);
                return ret;
        }
@@ -932,6 +933,8 @@ module_init(pci_epf_test_init);
 
 static void __exit pci_epf_test_exit(void)
 {
+       if (kpcitest_workqueue)
+               destroy_workqueue(kpcitest_workqueue);
        pci_epf_unregister_driver(&test_driver);
 }
 module_exit(pci_epf_test_exit);
-- 
2.25.1