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[media] cx23885-dvb: check if dvb_attach() succeded

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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>
This commit is contained in:
Miroslav Slugen 2011-12-11 18:57:58 -03:00 committed by Mauro Carvalho Chehab
parent 6c2cc5b575
commit a7c8aadad3
1 changed files with 5 additions and 0 deletions
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5
drivers/media/video/cx23885/cx23885-dvb.c
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@ -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: