From: Gregory Herrero <gregory.herrero@intel.com>
Date: Tue, 29 Sep 2015 10:08:21 +0000 (+0200)
Subject: usb: dwc2: gadget: abort core init if core_reset fails
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=86de48953653777fd6f918f5c0f2107bb873eae3;p=deliverable%2Flinux.git

usb: dwc2: gadget: abort core init if core_reset fails

No point of continue with initialization if core is not in a sane
state.

Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Tested-by: John Youn <johnyoun@synopsys.com>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 1a216c51bbe4..af4f0c165d05 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -2287,7 +2287,8 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
 	u32 val;
 
 	if (!is_usb_reset)
-		dwc2_hsotg_corereset(hsotg);
+		if (dwc2_hsotg_corereset(hsotg))
+			return;
 
 	/*
 	 * we must now enable ep0 ready for host detection and then