[PATCH net-next] net: phy: phylink: Don't release NULL GPIO

[Florian Fainelli]

If CONFIG_GPIOLIB is disabled, gpiod_put() becomes a stub that produces a
warning, this helped identify that we could be attempting to release a NULL
pl->link_gpio GPIO descriptor, so guard against that.

Fixes: daab3349ad1a ("net: phy: phylink: Release link GPIO")
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
---
 drivers/net/phy/phylink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 581ce93ecaf9..af4dc4425be2 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -624,7 +624,7 @@ void phylink_destroy(struct phylink *pl)
 {
 	if (pl->sfp_bus)
 		sfp_unregister_upstream(pl->sfp_bus);
-	if (!IS_ERR(pl->link_gpio))
+	if (!IS_ERR_OR_NULL(pl->link_gpio))
 		gpiod_put(pl->link_gpio);
 
 	cancel_work_sync(&pl->resolve);
-- 
2.14.1