From patchwork Thu Apr 14 13:10:08 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 562562 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 824C2C433FE for ; Thu, 14 Apr 2022 13:22:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244338AbiDNNZM (ORCPT ); Thu, 14 Apr 2022 09:25:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47652 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244086AbiDNNYk (ORCPT ); Thu, 14 Apr 2022 09:24:40 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 21FD725EE; Thu, 14 Apr 2022 06:19:20 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id A3FCBB82983; Thu, 14 Apr 2022 13:19:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0C4CFC385A5; Thu, 14 Apr 2022 13:19:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649942358; bh=lnD7yt6YO2cGIAKs7gyBGH38eExMGroxm8P3My8bq/M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AO5YrPbC0XmxMA57l6gFe8pOKAOkK0SnN5M1HUVCDVMmhGaA90tnO1yx1Fe4tov8K XGULWs0GcgRjYSunn33/L/SThgyW3lM8GR+7vdm9UKHm3uH2O76D6XnGYFXhYaowPd NESmL5sLZDrdAONp9i3JuC4vxwZIzkq5FMqildng= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dafna Hirschfeld , Ezequiel Garcia , Hans Verkuil , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH 4.19 105/338] media: stk1160: If start stream fails, return buffers with VB2_BUF_STATE_QUEUED Date: Thu, 14 Apr 2022 15:10:08 +0200 Message-Id: <20220414110841.891429206@linuxfoundation.org> X-Mailer: git-send-email 2.35.2 In-Reply-To: <20220414110838.883074566@linuxfoundation.org> References: <20220414110838.883074566@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dafna Hirschfeld [ Upstream commit fbe04b49a54e31f4321d632270207f0e6304cd16 ] If the callback 'start_streaming' fails, then all queued buffers in the driver should be returned with state 'VB2_BUF_STATE_QUEUED'. Currently, they are returned with 'VB2_BUF_STATE_ERROR' which is wrong. Fix this. This also fixes the warning: [ 65.583633] WARNING: CPU: 5 PID: 593 at drivers/media/common/videobuf2/videobuf2-core.c:1612 vb2_start_streaming+0xd4/0x160 [videobuf2_common] [ 65.585027] Modules linked in: snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_soc_hdmi_codec dw_hdmi_i2s_audio saa7115 stk1160 videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc crct10dif_ce panfrost snd_soc_simple_card snd_soc_audio_graph_card snd_soc_spdif_tx snd_soc_simple_card_utils gpu_sched phy_rockchip_pcie snd_soc_rockchip_i2s rockchipdrm analogix_dp dw_mipi_dsi dw_hdmi cec drm_kms_helper drm rtc_rk808 rockchip_saradc industrialio_triggered_buffer kfifo_buf rockchip_thermal pcie_rockchip_host ip_tables x_tables ipv6 [ 65.589383] CPU: 5 PID: 593 Comm: v4l2src0:src Tainted: G W 5.16.0-rc4-62408-g32447129cb30-dirty #14 [ 65.590293] Hardware name: Radxa ROCK Pi 4B (DT) [ 65.590696] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 65.591304] pc : vb2_start_streaming+0xd4/0x160 [videobuf2_common] [ 65.591850] lr : vb2_start_streaming+0x6c/0x160 [videobuf2_common] [ 65.592395] sp : ffff800012bc3ad0 [ 65.592685] x29: ffff800012bc3ad0 x28: 0000000000000000 x27: ffff800012bc3cd8 [ 65.593312] x26: 0000000000000000 x25: ffff00000d8a7800 x24: 0000000040045612 [ 65.593938] x23: ffff800011323000 x22: ffff800012bc3cd8 x21: ffff00000908a8b0 [ 65.594562] x20: ffff00000908a8c8 x19: 00000000fffffff4 x18: ffffffffffffffff [ 65.595188] x17: 000000040044ffff x16: 00400034b5503510 x15: ffff800011323f78 [ 65.595813] x14: ffff000013163886 x13: ffff000013163885 x12: 00000000000002ce [ 65.596439] x11: 0000000000000028 x10: 0000000000000001 x9 : 0000000000000228 [ 65.597064] x8 : 0101010101010101 x7 : 7f7f7f7f7f7f7f7f x6 : fefefeff726c5e78 [ 65.597690] x5 : ffff800012bc3990 x4 : 0000000000000000 x3 : ffff000009a34880 [ 65.598315] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000007cd99f0 [ 65.598940] Call trace: [ 65.599155] vb2_start_streaming+0xd4/0x160 [videobuf2_common] [ 65.599672] vb2_core_streamon+0x17c/0x1a8 [videobuf2_common] [ 65.600179] vb2_streamon+0x54/0x88 [videobuf2_v4l2] [ 65.600619] vb2_ioctl_streamon+0x54/0x60 [videobuf2_v4l2] [ 65.601103] v4l_streamon+0x3c/0x50 [videodev] [ 65.601521] __video_do_ioctl+0x1a4/0x428 [videodev] [ 65.601977] video_usercopy+0x320/0x828 [videodev] [ 65.602419] video_ioctl2+0x3c/0x58 [videodev] [ 65.602830] v4l2_ioctl+0x60/0x90 [videodev] [ 65.603227] __arm64_sys_ioctl+0xa8/0xe0 [ 65.603576] invoke_syscall+0x54/0x118 [ 65.603911] el0_svc_common.constprop.3+0x84/0x100 [ 65.604332] do_el0_svc+0x34/0xa0 [ 65.604625] el0_svc+0x1c/0x50 [ 65.604897] el0t_64_sync_handler+0x88/0xb0 [ 65.605264] el0t_64_sync+0x16c/0x170 [ 65.605587] ---[ end trace 578e0ba07742170d ]--- Fixes: 8ac456495a33d ("[media] stk1160: Stop device and unqueue buffers when start_streaming() fails") Signed-off-by: Dafna Hirschfeld Reviewed-by: Ezequiel Garcia Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/usb/stk1160/stk1160-core.c | 2 +- drivers/media/usb/stk1160/stk1160-v4l.c | 10 +++++----- drivers/media/usb/stk1160/stk1160.h | 2 +- 3 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/media/usb/stk1160/stk1160-core.c b/drivers/media/usb/stk1160/stk1160-core.c index bb0db4cdc6c7..271994bfe9c5 100644 --- a/drivers/media/usb/stk1160/stk1160-core.c +++ b/drivers/media/usb/stk1160/stk1160-core.c @@ -413,7 +413,7 @@ static void stk1160_disconnect(struct usb_interface *interface) /* Here is the only place where isoc get released */ stk1160_uninit_isoc(dev); - stk1160_clear_queue(dev); + stk1160_clear_queue(dev, VB2_BUF_STATE_ERROR); video_unregister_device(&dev->vdev); v4l2_device_disconnect(&dev->v4l2_dev); diff --git a/drivers/media/usb/stk1160/stk1160-v4l.c b/drivers/media/usb/stk1160/stk1160-v4l.c index 504e413edcd2..381f9f189bb7 100644 --- a/drivers/media/usb/stk1160/stk1160-v4l.c +++ b/drivers/media/usb/stk1160/stk1160-v4l.c @@ -269,7 +269,7 @@ static int stk1160_start_streaming(struct stk1160 *dev) stk1160_uninit_isoc(dev); out_stop_hw: usb_set_interface(dev->udev, 0, 0); - stk1160_clear_queue(dev); + stk1160_clear_queue(dev, VB2_BUF_STATE_QUEUED); mutex_unlock(&dev->v4l_lock); @@ -317,7 +317,7 @@ static int stk1160_stop_streaming(struct stk1160 *dev) stk1160_stop_hw(dev); - stk1160_clear_queue(dev); + stk1160_clear_queue(dev, VB2_BUF_STATE_ERROR); stk1160_dbg("streaming stopped\n"); @@ -762,7 +762,7 @@ static const struct video_device v4l_template = { /********************************************************************/ /* Must be called with both v4l_lock and vb_queue_lock hold */ -void stk1160_clear_queue(struct stk1160 *dev) +void stk1160_clear_queue(struct stk1160 *dev, enum vb2_buffer_state vb2_state) { struct stk1160_buffer *buf; unsigned long flags; @@ -773,7 +773,7 @@ void stk1160_clear_queue(struct stk1160 *dev) buf = list_first_entry(&dev->avail_bufs, struct stk1160_buffer, list); list_del(&buf->list); - vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + vb2_buffer_done(&buf->vb.vb2_buf, vb2_state); stk1160_dbg("buffer [%p/%d] aborted\n", buf, buf->vb.vb2_buf.index); } @@ -783,7 +783,7 @@ void stk1160_clear_queue(struct stk1160 *dev) buf = dev->isoc_ctl.buf; dev->isoc_ctl.buf = NULL; - vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + vb2_buffer_done(&buf->vb.vb2_buf, vb2_state); stk1160_dbg("buffer [%p/%d] aborted\n", buf, buf->vb.vb2_buf.index); } diff --git a/drivers/media/usb/stk1160/stk1160.h b/drivers/media/usb/stk1160/stk1160.h index acd1c811db08..54a046aacd33 100644 --- a/drivers/media/usb/stk1160/stk1160.h +++ b/drivers/media/usb/stk1160/stk1160.h @@ -177,7 +177,7 @@ struct regval { int stk1160_vb2_setup(struct stk1160 *dev); int stk1160_video_register(struct stk1160 *dev); void stk1160_video_unregister(struct stk1160 *dev); -void stk1160_clear_queue(struct stk1160 *dev); +void stk1160_clear_queue(struct stk1160 *dev, enum vb2_buffer_state vb2_state); /* Provided by stk1160-video.c */ int stk1160_alloc_isoc(struct stk1160 *dev);