et_freq+0x128/0x2f0 [tuner]
 [<ffffffffa0486464>] tuner_s_std+0xc4/0x740 [tuner]
 [<ffffffffa04b9ae6>] saa7134_set_tvnorm_hw+0x2d6/0x3d0 [saa7134]
 [<ffffffffa04ba455>] set_tvnorm+0xd5/0x100 [saa7134]
 [<ffffffffa04bc9fd>] saa7134_video_init2+0x1d/0x50 [saa7134]
 [<ffffffffa04bf57e>] saa7134_initdev+0x6e1/0xb1d [saa7134]
 [<ffffffff8125afea>] ? kobject_get+0x1a/0x30
 [<ffffffff812765f7>] local_pci_probe+0x17/0x20
 [<ffffffff812777e1>] pci_device_probe+0x101/0x120
 [<ffffffff8132ec72>] ? driver_sysfs_add+0x62/0x90
 [<ffffffff8132ee10>] driver_probe_device+0xa0/0x2a0
 [<ffffffff8132f0bb>] __driver_attach+0xab/0xb0
 [<ffffffff8132f010>] ? __driver_attach+0x0/0xb0
 [<ffffffff8132e074>] bus_for_each_dev+0x64/0x90
 [<ffffffff8132ebae>] driver_attach+0x1e/0x20
 [<ffffffff8132e4b0>] bus_add_driver+0x200/0x300
 [<ffffffff8132f3e6>] driver_register+0x76/0x140
 [<ffffffff814c7c43>] ? printk+0x41/0x46
 [<ffffffff81277a46>] __pci_register_driver+0x56/0xd0
 [<ffffffffa04de000>] ? saa7134_init+0x0/0x4f [saa7134]
 [<ffffffffa04de04d>] saa7134_init+0x4d/0x4f [saa7134]
 [<ffffffff8100a04c>] do_one_initcall+0x3c/0x1d0
 [<ffffffff810af5ef>] sys_init_module+0xdf/0x250
 [<ffffffff81013172>] system_call_fastpath+0x16/0x1b
Code: 20 01 49 c7 c0 c9 ec 48 a0 83 7e 04 01 74 2d 8b 0d 3f 2f 00 00 85 c9 0f 85 d7 00 00 00 c9 c3 0f 1f 44 00 00 a9 03 00 01 00 74 61 <c6> 47 20 02 83 7e 04 01 49 c7 c0 cc ec 48 a0 75 d3 0f b6 47 22
RIP  [<ffffffffa048c267>] set_audio+0x47/0x170 [tda8290]
 RSP <ffff88010ba01b28>
CR2: 0000000000000020

This happens because some I2C callbacks actually depend on having the
driver entirely initialized. To avoid this OOPS, just clean the I2C
callbacks, as if no device were detected.

Cc: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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