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authorMauro Carvalho Chehab <mchehab@infradead.org>2008-04-11 11:29:44 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-04-24 14:08:00 -0300
commit9950c1b5b4b86d4aae12853c2f0a0ef11d976764 (patch)
tree50ad703f54ea15f738dfc54c471b89fcdeca7dc0 /drivers
parentfb7b37cf913c19dbdbb9bf3e653924e126b4007e (diff)
V4L/DVB (7537): cx88/saa7134: Fix: avoid OOPS on module unload
If frontend is not attached, both cx88-dvb and saa7134-dvb don't register DVB. However, dvb unregister were inconditionally called. Due to that, an OOPS is generated. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/video/cx88/cx88-dvb.c3
-rw-r--r--drivers/media/video/saa7134/saa7134-dvb.c3
2 files changed, 4 insertions, 2 deletions
diff --git a/drivers/media/video/cx88/cx88-dvb.c b/drivers/media/video/cx88/cx88-dvb.c
index 8fc929eb47b..e83d9869e68 100644
--- a/drivers/media/video/cx88/cx88-dvb.c
+++ b/drivers/media/video/cx88/cx88-dvb.c
@@ -951,7 +951,8 @@ static int cx8802_dvb_remove(struct cx8802_driver *drv)
struct cx8802_dev *dev = drv->core->dvbdev;
/* dvb */
- videobuf_dvb_unregister(&dev->dvb);
+ if (dev->dvb.frontend)
+ videobuf_dvb_unregister(&dev->dvb);
vp3054_i2c_remove(dev);
diff --git a/drivers/media/video/saa7134/saa7134-dvb.c b/drivers/media/video/saa7134/saa7134-dvb.c
index 5c84f45ecbe..e5c3569dd2c 100644
--- a/drivers/media/video/saa7134/saa7134-dvb.c
+++ b/drivers/media/video/saa7134/saa7134-dvb.c
@@ -1302,7 +1302,8 @@ static int dvb_fini(struct saa7134_dev *dev)
}
}
}
- videobuf_dvb_unregister(&dev->dvb);
+ if (dev->dvb.frontend)
+ videobuf_dvb_unregister(&dev->dvb);
return 0;
}