| From a7c8aadad39428b64d26c3971d967f8314e2397d Mon Sep 17 00:00:00 2001 |
| From: Miroslav Slugen <thunder.mmm@gmail.com> |
| Date: Sun, 11 Dec 2011 18:57:58 -0300 |
| Subject: [media] cx23885-dvb: check if dvb_attach() succeded |
| |
| From: Miroslav Slugen <thunder.mmm@gmail.com> |
| |
| commit a7c8aadad39428b64d26c3971d967f8314e2397d upstream. |
| |
| Fix possible null dereference for Leadtek DTV 3200H |
| XC4000 tuner when no firmware file available. |
| |
| Signed-off-by: Miroslav Slugen <thunder.mmm@gmail.com> |
| Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
| |
| --- |
| drivers/media/video/cx23885/cx23885-dvb.c | 5 +++++ |
| 1 file changed, 5 insertions(+) |
| |
| --- a/drivers/media/video/cx23885/cx23885-dvb.c |
| +++ b/drivers/media/video/cx23885/cx23885-dvb.c |
| @@ -940,6 +940,11 @@ static int dvb_register(struct cx23885_t |
| |
| 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: |
