RDMA/ocrdma: Unregister inet notifier when unloading ocrdma

Unregister the inet notifier during ocrdma unload to avoid a panic after
driver unload.

Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com>
Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
index 8bd9db6..7c504e0 100644 (file)
--- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
@@ -539,6 +539,11 @@ static void ocrdma_unregister_inet6addr_notifier(void)
 #endif
 }
 
+static void ocrdma_unregister_inetaddr_notifier(void)
+{
+       unregister_inetaddr_notifier(&ocrdma_inetaddr_notifier);
+}
+
 static int __init ocrdma_init_module(void)
 {
        int status;
@@ -552,13 +557,19 @@ static int __init ocrdma_init_module(void)
 #if IS_ENABLED(CONFIG_IPV6)
        status = register_inet6addr_notifier(&ocrdma_inet6addr_notifier);
        if (status)
-               return status;
+               goto err_notifier6;
 #endif
 
        status = be_roce_register_driver(&ocrdma_drv);
        if (status)
-               ocrdma_unregister_inet6addr_notifier();
+               goto err_be_reg;
 
+       return 0;
+
+err_be_reg:
+       ocrdma_unregister_inet6addr_notifier();
+err_notifier6:
+       ocrdma_unregister_inetaddr_notifier();
        return status;
 }
 
@@ -566,6 +577,7 @@ static void __exit ocrdma_exit_module(void)
 {
        be_roce_unregister_driver(&ocrdma_drv);
        ocrdma_unregister_inet6addr_notifier();
+       ocrdma_unregister_inetaddr_notifier();
        ocrdma_rem_debugfs();
 }