[PATCH] usb: ehci: Fix unitialized variable

[Sascha Hauer]

buffer_dma is not really used unitialized, but the compiler doesn't
realize this. Initialize it explicitly.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 drivers/usb/host/ehci-hcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 8c4da9fd12..6143c9f64e 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -305,7 +305,7 @@ ehci_submit_async(struct usb_device *dev, unsigned long pipe, void *buffer,
 	struct usb_host *host = dev->host;
 	struct ehci_host *ehci = to_ehci(host);
 	const bool dir_in = usb_pipein(pipe);
-	dma_addr_t buffer_dma, req_dma;
+	dma_addr_t buffer_dma = DMA_ERROR_CODE, req_dma;
 	struct QH *qh = &ehci->qh_list[1];
 	struct qTD *td;
 	volatile struct qTD *vtd;
-- 
2.29.2