From: Gregory Herrero <gregory.herrero@intel.com>
Date: Fri, 9 Jan 2015 12:39:01 +0000 (+0100)
Subject: usb: dwc2: gadget: don't block after fifo flush timeout
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=48b20bcb3b2e9b15be1ebb9b574b003cffb033d5;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

usb: dwc2: gadget: don't block after fifo flush timeout

Can't stay in the loop forever. Break it after timeout.

Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 6d76e28a69da..e3bb525ae54d 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -230,6 +230,7 @@ static void s3c_hsotg_init_fifo(struct dwc2_hsotg *hsotg)
 			dev_err(hsotg->dev,
 				"%s: timeout flushing fifos (GRSTCTL=%08x)\n",
 				__func__, val);
+			break;
 		}
 
 		udelay(1);