[PATCH net v2 2/2] net: phylink: Add module_exit_stub()

[Gan, Yi Fang]

In delete_module(), if mod->init callback is defined but mod->exit
callback is not defined, it will assume the module cannot be removed
and return EBUSY. The module_exit() is missing from current phylink
module drive causing failure while unloading it.
Add module_exit_stub() in phylink for the module to be unloadable.

Fixes: eca68a3c7d05 ("net: phylink: pass supported host PHY interface modes to phylib for SFP's PHYs")
Cc: <stable@xxxxxxxxxxxxxxx> # 6.1+
Signed-off-by: Gan, Yi Fang <yi.fang.gan@xxxxxxxxx>
---
 drivers/net/phy/phylink.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 25c19496a336..823c9b43cd92 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -3725,6 +3725,7 @@ static int __init phylink_init(void)
 }
 
 module_init(phylink_init);
+module_exit_stub(phylink);
 
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("phylink models the MAC to optional PHY connection");
-- 
2.34.1