linux-kernel - [PATCH stable 4.9 08/21] media: friio-fe: get rid of set

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Message-Id: <20200605162518.28099-9-florian.fainelli@broadcom.com>
Date:   Fri,  5 Jun 2020 09:25:05 -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 08/21] media: friio-fe: get rid of set_property()

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

commit b2c41ca9632e686e79f6c9db9c5f75666d37926e upstream

This callback is not actually doing anything but making it to
return an error depending on the DTV frontend command. Well,
that could break userspace for no good reason, and, if needed,
should be implemented, instead, at set_frontend() callback.

So, get rid of it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@...pensource.com>
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 drivers/media/usb/dvb-usb/friio-fe.c | 24 ------------------------
 1 file changed, 24 deletions(-)

diff --git a/drivers/media/usb/dvb-usb/friio-fe.c b/drivers/media/usb/dvb-usb/friio-fe.c
index 979f05b4b87c..237f12f9a7f2 100644
--- a/drivers/media/usb/dvb-usb/friio-fe.c
+++ b/drivers/media/usb/dvb-usb/friio-fe.c
@@ -261,28 +261,6 @@ static int jdvbt90502_read_signal_strength(struct dvb_frontend *fe,
 	return 0;
 }
 
-
-/* filter out un-supported properties to notify users */
-static int jdvbt90502_set_property(struct dvb_frontend *fe,
-				   struct dtv_property *tvp)
-{
-	int r = 0;
-
-	switch (tvp->cmd) {
-	case DTV_DELIVERY_SYSTEM:
-		if (tvp->u.data != SYS_ISDBT)
-			r = -EINVAL;
-		break;
-	case DTV_CLEAR:
-	case DTV_TUNE:
-	case DTV_FREQUENCY:
-		break;
-	default:
-		r = -EINVAL;
-	}
-	return r;
-}
-
 static int jdvbt90502_set_frontend(struct dvb_frontend *fe)
 {
 	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
@@ -457,8 +435,6 @@ static struct dvb_frontend_ops jdvbt90502_ops = {
 	.init = jdvbt90502_init,
 	.write = _jdvbt90502_write,
 
-	.set_property = jdvbt90502_set_property,
-
 	.set_frontend = jdvbt90502_set_frontend,
 
 	.read_status = jdvbt90502_read_status,
-- 
2.17.1