[PATCH -next] usb: cdnsp: fix error return code in cdnsp_alloc_priv_device()

[Yang Yingliang]

If cdnsp_ring_alloc() fails, cdnsp_alloc_priv_device() need return
error code.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
---
 drivers/usb/cdns3/cdnsp-mem.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/cdns3/cdnsp-mem.c b/drivers/usb/cdns3/cdnsp-mem.c
index a47948a1623f..c87bf3513844 100644
--- a/drivers/usb/cdns3/cdnsp-mem.c
+++ b/drivers/usb/cdns3/cdnsp-mem.c
@@ -694,8 +694,10 @@ static int cdnsp_alloc_priv_device(struct cdnsp_device *pdev)
 
 	/* Allocate endpoint 0 ring. */
 	pdev->eps[0].ring = cdnsp_ring_alloc(pdev, 2, TYPE_CTRL, 0, GFP_ATOMIC);
-	if (!pdev->eps[0].ring)
+	if (!pdev->eps[0].ring) {
+		ret = -ENOMEM;
 		goto fail;
+	}
 
 	/* Point to output device context in dcbaa. */
 	pdev->dcbaa->dev_context_ptrs[1] = cpu_to_le64(pdev->out_ctx.dma);
-- 
2.25.1