From d3abda5a98a18e524e17fd4085c9f4bd53e9ef53 Mon Sep 17 00:00:00 2001
From: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Date: Wed, 27 Nov 2019 13:10:47 -0800
Subject: [PATCH] usb: dwc3: gadget: Clear started flag for non-IOC
Git-commit: d3abda5a98a18e524e17fd4085c9f4bd53e9ef53
Patch-mainline: v5.5-rc2
References: git-fixes bnc#1151927 5.3.17
Normally the END_TRANSFER command completion handler will clear the
DWC3_EP_TRANSFER_STARTED flag. However, if the command was sent without
interrupt on completion, then the flag will not be cleared. Make sure to
clear the flag in this case.
Cc: stable@vger.kernel.org
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/usb/dwc3/gadget.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 6ff6ee4fe5aa..0c960a97ea02 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2719,6 +2719,9 @@ static void dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force,
WARN_ON_ONCE(ret);
dep->resource_index = 0;
+ if (!interrupt)
+ dep->flags &= ~DWC3_EP_TRANSFER_STARTED;
+
if (dwc3_is_usb31(dwc) || dwc->revision < DWC3_REVISION_310A)
udelay(100);
}
--
2.16.4