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authorMiroslav Slugen2011-12-11 18:57:58 -0300
committerMauro Carvalho Chehab2012-01-16 11:54:50 -0200
commita7c8aadad39428b64d26c3971d967f8314e2397d (patch)
tree7fba24fbf2553bf94a2cf1fe4ffb173da1192e90 /drivers/media
parent6c2cc5b575ed09d81507ec86cc5cfad022d9236b (diff)
[media] cx23885-dvb: check if dvb_attach() succeded
Fix possible null dereference for Leadtek DTV 3200H XC4000 tuner when no firmware file available. Cc: stable@kernel.org Signed-off-by: Miroslav Slugen <thunder.mmm@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/video/cx23885/cx23885-dvb.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/media/video/cx23885/cx23885-dvb.c b/drivers/media/video/cx23885/cx23885-dvb.c
index af8a225763d3..6835eb1fc093 100644
--- a/drivers/media/video/cx23885/cx23885-dvb.c
+++ b/drivers/media/video/cx23885/cx23885-dvb.c
@@ -943,6 +943,11 @@ static int dvb_register(struct cx23885_tsport *port)
fe = dvb_attach(xc4000_attach, fe0->dvb.frontend,
&dev->i2c_bus[1].i2c_adap, &cfg);
+ if (!fe) {
+ printk(KERN_ERR "%s/2: xc4000 attach failed\n",
+ dev->name);
+ goto frontend_detach;
+ }
}
break;
case CX23885_BOARD_TBS_6920: