From: Chunfeng Yun <chunfeng.yun@mediatek.com>
Date: Fri, 13 Oct 2017 09:10:37 +0000 (+0800)
Subject: usb: mtu3: fix error return code in ssusb_gadget_init()
X-Git-Tag: v4.14.5~33
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8891ee7e676c0adc59b5e6c298de0b109a1934d5;p=platform%2Fkernel%2Flinux-rpi.git

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
--- 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);