From: Jonathan Nieder <jrnieder@gmail.com>
Date: Sat, 31 Dec 2011 11:19:56 +0000 (-0300)
Subject: [media] firedtv: handle errors from dvb_net_init
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f1d99f39fbd0218b8f8f6548e5522cbc2124f949;p=linux-beck.git

[media] firedtv: handle errors from dvb_net_init

It is not common for dvb_net_init to fail, but after the patch
"dvb_net_init: return -errno on error" it can fail due to running out
of memory.  Handle this.

From an audit of dvb_net_init callers.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Reviewed-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/dvb/firewire/firedtv-dvb.c b/drivers/media/dvb/firewire/firedtv-dvb.c
index fd8bbbfa5c59..eb7496eab130 100644
--- a/drivers/media/dvb/firewire/firedtv-dvb.c
+++ b/drivers/media/dvb/firewire/firedtv-dvb.c
@@ -203,7 +203,9 @@ int fdtv_dvb_register(struct firedtv *fdtv, const char *name)
 	if (err)
 		goto fail_rem_frontend;
 
-	dvb_net_init(&fdtv->adapter, &fdtv->dvbnet, &fdtv->demux.dmx);
+	err = dvb_net_init(&fdtv->adapter, &fdtv->dvbnet, &fdtv->demux.dmx);
+	if (err)
+		goto fail_disconnect_frontend;
 
 	fdtv_frontend_init(fdtv, name);
 	err = dvb_register_frontend(&fdtv->adapter, &fdtv->fe);
@@ -218,6 +220,7 @@ int fdtv_dvb_register(struct firedtv *fdtv, const char *name)
 
 fail_net_release:
 	dvb_net_release(&fdtv->dvbnet);
+fail_disconnect_frontend:
 	fdtv->demux.dmx.close(&fdtv->demux.dmx);
 fail_rem_frontend:
 	fdtv->demux.dmx.remove_frontend(&fdtv->demux.dmx, &fdtv->frontend);