linux-kernel - [PATCH stable 4.9 21/21] media: dvb

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Date:   Fri,  5 Jun 2020 09:25:18 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     stable@...r.kernel.org,
        Mauro Carvalho Chehab <mchehab@...pensource.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Michael Krufky <mkrufky@...uxtv.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Shuah Khan <shuah@...nel.org>,
        Jaedon Shin <jaedon.shin@...il.com>,
        Colin Ian King <colin.king@...onical.com>,
        Katsuhiro Suzuki <suzuki.katsuhiro@...ionext.com>,
        Satendra Singh Thakur <satendra.t@...sung.com>,
        linux-media@...r.kernel.org (open list:MEDIA INPUT INFRASTRUCTURE
        (V4L/DVB)),
        linux-fsdevel@...r.kernel.org (open list:FILESYSTEMS (VFS and
        infrastructure))
Subject: [PATCH stable 4.9 21/21] media: dvb_frontend: fix return error code

From: Mauro Carvalho Chehab <mchehab@...pensource.com>

commit 330dada5957e3ca0c8811b14c45e3ac42c694651 upstream

The correct error code when a function is not defined is
-ENOTSUPP. It was typoed wrong as -EOPNOTSUPP, with,
unfortunately, exists, but it is not used by the DVB core.

Thanks-to: Geert Uytterhoeven <geert@...ux-m68k.org>
Thanks-to: Arnd Bergmann <arnd@...db.de>

To make me revisit this code.

Fixes: a9cb97c3e628 ("media: dvb_frontend: be sure to init dvb_frontend_handle_ioctl() return code")
Signed-off-by: Mauro Carvalho Chehab <mchehab@...pensource.com>
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 drivers/media/dvb-core/dvb_frontend.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index 740dedf03361..cd45b3894661 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -2265,7 +2265,7 @@ static int dvb_frontend_handle_ioctl(struct file *file,
 	struct dvb_frontend *fe = dvbdev->priv;
 	struct dvb_frontend_private *fepriv = fe->frontend_priv;
 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-	int i, err = -EOPNOTSUPP;
+	int i, err = -ENOTSUPP;
 
 	dev_dbg(fe->dvb->device, "%s:\n", __func__);
 
-- 
2.17.1