linux-kernel - [PATCH v3 8/8] usb: dwc3: Check MISSED ISOC bit only for ISOC endpoints

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Message-ID: <1536326029-16327-9-git-send-email-anurag.kumar.vulisha@xilinx.com>
Date:   Fri, 7 Sep 2018 18:43:49 +0530
From:   Anurag Kumar Vulisha <anurag.kumar.vulisha@...inx.com>
To:     <balbi@...nel.org>, <gregkh@...uxfoundation.org>
CC:     <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <Thinh.Nguyen@...opsys.com>, <v.anuragkumar@...il.com>,
        Anurag Kumar Vulisha <anurag.kumar.vulisha@...inx.com>
Subject: [PATCH v3 8/8] usb: dwc3: Check MISSED ISOC bit only for ISOC endpoints

When streaming is enabled on BULK endpoints and LST bit is set
observed MISSED ISOC bit set in event->status for BULK ep. Since
this bit is only valid for isocronous endpoints, changed the code
to check for isocrnous endpoints when MISSED ISOC bit is set.

Signed-off-by: Anurag Kumar Vulisha <anurag.kumar.vulisha@...inx.com>
Reviewed-by: Thinh Nguyen <thinhn@...opsys.com>
---
 Changes in v3:
	1. None

 Changes in v2:
	1. None
---
 drivers/usb/dwc3/gadget.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index e1d4b73..a4ead33 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2413,7 +2413,8 @@ static void dwc3_gadget_endpoint_transfer_in_progress(struct dwc3_ep *dep,
 	if (event->status & DEPEVT_STATUS_BUSERR)
 		status = -ECONNRESET;
 
-	if (event->status & DEPEVT_STATUS_MISSED_ISOC) {
+	if ((event->status & DEPEVT_STATUS_MISSED_ISOC) &&
+	    usb_endpoint_xfer_isoc(dep->endpoint.desc)) {
 		status = -EXDEV;
 
 		if (list_empty(&dep->started_list))
-- 
2.1.1