linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
To: unlisted-recipients:; (no To-header on input)
Cc: linuxarm@huawei.com, mauro.chehab@huawei.com,
	Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
	Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Maxime Ripard <mripard@kernel.org>,
	Yong Deng <yong.deng@magewell.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
	linux-sunxi@lists.linux.dev
Subject: [PATCH 04/11] media: sun6i-csi: add a missing return code
Date: Wed, 16 Jun 2021 14:28:30 +0200	[thread overview]
Message-ID: <525bad50008338d96fb71e724675061ffa07ff87.1623846327.git.mchehab+huawei@kernel.org> (raw)
In-Reply-To: <cover.1623846327.git.mchehab+huawei@kernel.org>

As pointed by smatch, there's a missing return code:

	drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c:485 sun6i_video_open() warn: missing error code 'ret'

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c
index 3181d0781b61..07b2161392d2 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c
@@ -481,8 +481,10 @@ static int sun6i_video_open(struct file *file)
 		goto fh_release;
 
 	/* check if already powered */
-	if (!v4l2_fh_is_singular_file(file))
+	if (!v4l2_fh_is_singular_file(file)) {
+		ret = -EBUSY;
 		goto unlock;
+	}
 
 	ret = sun6i_csi_set_power(video->csi, true);
 	if (ret < 0)
-- 
2.31.1


  parent reply	other threads:[~2021-06-16 12:28 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-16 12:28 [PATCH 00/11] Address some smatch warnings Mauro Carvalho Chehab
2021-06-16 12:28 ` [PATCH 01/11] media: dvb_ca_en50221: avoid speculation from CA slot Mauro Carvalho Chehab
2021-06-16 12:28 ` [PATCH 02/11] media: dvb_net: avoid speculation from net slot Mauro Carvalho Chehab
2021-06-16 12:28 ` [PATCH 03/11] media: dvbdev: fix error logic at dvb_register_device() Mauro Carvalho Chehab
2021-06-16 12:28 ` Mauro Carvalho Chehab [this message]
2021-06-17  5:37   ` [PATCH 04/11] media: sun6i-csi: add a missing return code yong
2021-06-16 12:28 ` [PATCH 05/11] media: saa7134: use more meaninful goto labels Mauro Carvalho Chehab
2021-06-16 12:28 ` [PATCH 06/11] media: saa7134: fix saa7134_initdev error handling logic Mauro Carvalho Chehab
2021-06-16 12:28 ` [PATCH 07/11] media: siano: fix device register error path Mauro Carvalho Chehab
2021-06-16 12:28 ` [PATCH 08/11] media: adv7842: better document EDID block size Mauro Carvalho Chehab
2021-06-16 12:32   ` Hans Verkuil
2021-06-17  6:26   ` kernel test robot
2021-06-17  8:15   ` kernel test robot
2021-06-16 12:28 ` [PATCH 09/11] media: ttusb-dec: cleanup an error handling logic Mauro Carvalho Chehab
2021-06-16 12:28 ` [PATCH 10/11] media: dvb-core: frontend: make GET/SET safer Mauro Carvalho Chehab
2021-06-16 12:28 ` [PATCH 11/11] media: xilinx: simplify get fourcc logic Mauro Carvalho Chehab

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=525bad50008338d96fb71e724675061ffa07ff87.1623846327.git.mchehab+huawei@kernel.org \
    --to=mchehab+huawei@kernel.org \
    --cc=jernej.skrabec@gmail.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-media@vger.kernel.org \
    --cc=linux-sunxi@lists.linux.dev \
    --cc=linuxarm@huawei.com \
    --cc=mauro.chehab@huawei.com \
    --cc=mchehab@kernel.org \
    --cc=mripard@kernel.org \
    --cc=wens@csie.org \
    --cc=yong.deng@magewell.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).