[PATCH] staging: rtl8712: check register_netdev() return value

[shaojie . dong]

From: "shaojie.dong" <shaojie.dong@xxxxxxxxxxxxxxxx>

Function register_netdev() can fail, so we should check it's return value

Signed-off-by: shaojie.dong <shaojie.dong@xxxxxxxxxxxxxxxx>
---
 drivers/staging/rtl8712/hal_init.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8712/hal_init.c b/drivers/staging/rtl8712/hal_init.c
index 715f1fe8b..38a3e3d44 100644
--- a/drivers/staging/rtl8712/hal_init.c
+++ b/drivers/staging/rtl8712/hal_init.c
@@ -45,7 +45,10 @@ static void rtl871x_load_fw_cb(const struct firmware *firmware, void *context)
 	}
 	adapter->fw = firmware;
 	/* firmware available - start netdev */
-	register_netdev(adapter->pnetdev);
+	if (register_netdev(adapter->pnetdev) != 0) {
+		netdev_err(adapter->pnetdev, "register_netdev() failed\n");
+		free_netdev(adapter->pnetdev);
+	}
 	complete(&adapter->rtl8712_fw_ready);
 }
 
-- 
2.17.1