usb: mtu3: fix error return code in ssusb_gadget_init()

[ Upstream commit c162ff0aaaac456ef29aebd1e9d4d3e305cd3279 ]

When failing to get IRQ number, platform_get_irq() may return
-EPROBE_DEFER, but we ignore it and always return -ENODEV,
so fix it.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c
index 99c65b0..9475798 100644 (file)
--- a/drivers/usb/mtu3/mtu3_core.c
+++ b/drivers/usb/mtu3/mtu3_core.c
@@ -774,9 +774,9 @@ int ssusb_gadget_init(struct ssusb_mtk *ssusb)
                return -ENOMEM;
 
        mtu->irq = platform_get_irq(pdev, 0);
-       if (mtu->irq <= 0) {
+       if (mtu->irq < 0) {
                dev_err(dev, "fail to get irq number\n");
-               return -ENODEV;
+               return mtu->irq;
        }
        dev_info(dev, "irq %d\n", mtu->irq);