From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 821F8C28CC0 for ; Thu, 30 May 2019 04:15:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5A6722524A for ; Thu, 30 May 2019 04:15:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559189758; bh=xKdvYiTrysXl8tAQY5xmYsYmJtshszSnb1+V0B/wqFY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ge9U+/Yx1/cawtZOxibreg6zs/Zw03Z2vdPlOfpQa1pMHQClaafxioS7NXBD7aogL rEQyhIYAprJItnEjELFB6nYbdHr1yq5X0h/zcaMZoLvJuQ8HUByAkdaQ9Fy50TkaGK HEi758TsMbLUaqYXa4NPtAKbSBYXZS7satBT/A0o= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730536AbfE3DP4 (ORCPT ); Wed, 29 May 2019 23:15:56 -0400 Received: from mail.kernel.org ([198.145.29.99]:40642 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730526AbfE3DPz (ORCPT ); Wed, 29 May 2019 23:15:55 -0400 Received: from localhost (ip67-88-213-2.z213-88-67.customer.algx.net [67.88.213.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2F7CA24595; Thu, 30 May 2019 03:15:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559186155; bh=xKdvYiTrysXl8tAQY5xmYsYmJtshszSnb1+V0B/wqFY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dDc0gcDMuhkCf9mhEZL7b3B5dntyVvtGiT5V1mr6n1prwlVHh79HMn2BfgJtk9CAf BPT++tFukthArCmhSDsIr7UgnLTIac7JKJSRIMswvjcbU+3l6CeUuS2zksEMgojD72 iNSGmajThSkD9yN2LOuBDSKNBOs6s44WaUhPbSss= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hans Verkuil , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH 5.0 306/346] media: gspca: do not resubmit URBs when streaming has stopped Date: Wed, 29 May 2019 20:06:19 -0700 Message-Id: <20190530030556.342442279@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190530030540.363386121@linuxfoundation.org> References: <20190530030540.363386121@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org [ Upstream commit e6f8bd59c28f758feea403a70d6c3ef28c50959f ] When streaming is stopped all URBs are killed, but in fill_frame and in bulk_irq this results in an attempt to resubmit the killed URB. That is not what you want and causes spurious kernel messages. So check if streaming has stopped before resubmitting. Also check against gspca_dev->streaming rather than vb2_start_streaming_called() since vb2_start_streaming_called() will return true when in stop_streaming, but gspca_dev->streaming is set to false when stop_streaming is called. Fixes: 6992effe5344 ("gspca: Kill all URBs before releasing any of them") Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/usb/gspca/gspca.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/media/usb/gspca/gspca.c b/drivers/media/usb/gspca/gspca.c index cac8e5f0543be..bdb81e93b74dd 100644 --- a/drivers/media/usb/gspca/gspca.c +++ b/drivers/media/usb/gspca/gspca.c @@ -314,6 +314,8 @@ static void fill_frame(struct gspca_dev *gspca_dev, } resubmit: + if (!gspca_dev->streaming) + return; /* resubmit the URB */ st = usb_submit_urb(urb, GFP_ATOMIC); if (st < 0) @@ -330,7 +332,7 @@ static void isoc_irq(struct urb *urb) struct gspca_dev *gspca_dev = (struct gspca_dev *) urb->context; gspca_dbg(gspca_dev, D_PACK, "isoc irq\n"); - if (!vb2_start_streaming_called(&gspca_dev->queue)) + if (!gspca_dev->streaming) return; fill_frame(gspca_dev, urb); } @@ -344,7 +346,7 @@ static void bulk_irq(struct urb *urb) int st; gspca_dbg(gspca_dev, D_PACK, "bulk irq\n"); - if (!vb2_start_streaming_called(&gspca_dev->queue)) + if (!gspca_dev->streaming) return; switch (urb->status) { case 0: @@ -367,6 +369,8 @@ static void bulk_irq(struct urb *urb) urb->actual_length); resubmit: + if (!gspca_dev->streaming) + return; /* resubmit the URB */ if (gspca_dev->cam.bulk_nurbs != 0) { st = usb_submit_urb(urb, GFP_ATOMIC); -- 2.20.1