From: Ye Jianjun (Joey <joeyye@trident.com.cn>
Date: Fri, 9 Sep 2005 20:02:44 +0000 (-0700)
Subject: [PATCH] dvb: usb: dtt200u: copy frontend_ops before modifying
X-Git-Tag: firefly_0821_release~41567
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=43bc3f41e4b1bb88adaef593f50c1f032bf0e876;p=firefly-linux-kernel-4.4.55.git

[PATCH] dvb: usb: dtt200u: copy frontend_ops before modifying

Fix: copy frontend_ops before modifying

Signed-off-by: Ye Jianjun (Joey) <joeyye@trident.com.cn>
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/media/dvb/dvb-usb/dtt200u-fe.c b/drivers/media/dvb/dvb-usb/dtt200u-fe.c
index b032523b07bc..0a94ec22aeb8 100644
--- a/drivers/media/dvb/dvb-usb/dtt200u-fe.c
+++ b/drivers/media/dvb/dvb-usb/dtt200u-fe.c
@@ -18,6 +18,7 @@ struct dtt200u_fe_state {
 
 	struct dvb_frontend_parameters fep;
 	struct dvb_frontend frontend;
+	struct dvb_frontend_ops ops;
 };
 
 static int dtt200u_fe_read_status(struct dvb_frontend* fe, fe_status_t *stat)
@@ -163,8 +164,9 @@ struct dvb_frontend* dtt200u_fe_attach(struct dvb_usb_device *d)
 	deb_info("attaching frontend dtt200u\n");
 
 	state->d = d;
+	memcpy(&state->ops,&dtt200u_fe_ops,sizeof(struct dvb_frontend_ops));
 
-	state->frontend.ops = &dtt200u_fe_ops;
+	state->frontend.ops = &state->ops;
 	state->frontend.demodulator_priv = state;
 
 	goto success;