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| author | Miroslav Slugen <thunder.mmm@gmail.com> | 2011-12-11 22:57:58 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-01-16 14:54:50 +0100 |
| commit | a7c8aadad39428b64d26c3971d967f8314e2397d (patch) | |
| tree | 7fba24fbf2553bf94a2cf1fe4ffb173da1192e90 /drivers/media | |
| parent | [media] cx231xx: dereferencing NULL after allocation failure (diff) | |
| download | linux-a7c8aadad39428b64d26c3971d967f8314e2397d.tar.xz linux-a7c8aadad39428b64d26c3971d967f8314e2397d.zip | |
[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.c | 5 |
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: |