[PATCH] usb: mtu3: Fix device_find_first_child() return value handling

[Marek Vasut]

This function only ever returns 0, but may not assign the second
parameter. Check the second parameter instead.

Reported-by: Jonas Karlman <jo...@kwiboo.se>
Signed-off-by: Marek Vasut <ma...@denx.de>
---
Cc: Chunfeng Yun <chunfeng....@mediatek.com>
Cc: GSS_MTK_Uboot_upstream <gss_mtk_uboot_upstr...@mediatek.com>
Cc: Marek Vasut <ma...@denx.de>
Cc: Ryder Lee <ryder....@mediatek.com>
Cc: Weijie Gao <weijie....@mediatek.com>
---
 drivers/usb/mtu3/mtu3_plat.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c
index b1b22b9357c..7eb8360eada 100644
--- a/drivers/usb/mtu3/mtu3_plat.c
+++ b/drivers/usb/mtu3/mtu3_plat.c
@@ -161,10 +161,10 @@ static int get_ssusb_rscs(struct udevice *dev, struct 
ssusb_mtk *ssusb)
                return -ENODEV;
        }
 
-       ret = device_find_first_child(dev, &child);
-       if (ret || !child) {
-               dev_err(dev, "failed to get child %d!\n", ret);
-               return ret;
+       device_find_first_child(dev, &child);
+       if (!child) {
+               dev_err(dev, "failed to get child!\n");
+               return -ENODEV;
        }
 
        ssusb->mac_base = devfdt_remap_addr_name(child, "mac");
-- 
2.40.1