From 5c81ababecd7ddae08ca944a65d8030cd393013c Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Mon, 25 Jun 2012 19:30:49 +0300 Subject: usb: dwc3: ep0: prevent starting transfers twice on ep0 In case we try to start an invalid test mode, we will call dwc3_ep0_stall_and_restart() but we will also call dwc3_ep0_out_start() which will start a second transfer on ep0. Let's prevent any problems by returning early in the error case. Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/ep0.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 9a8f26cef0a1..8244eb53082e 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -744,6 +744,7 @@ static void dwc3_ep0_complete_status(struct dwc3 *dwc, dev_dbg(dwc->dev, "Invalid Test #%d\n", dwc->test_mode_nr); dwc3_ep0_stall_and_restart(dwc); + return; } } -- cgit v1.2.3