Shuah Khan 7e53898a76 [media] media: fix null pointer dereference in v4l_vb2q_enable_media_source()
Fix the null pointer dereference in v4l_vb2q_enable_media_source().
DVB only drivers don't have valid struct v4l2_fh pointer.

[  548.443272] BUG: unable to handle kernel NULL pointer dereference
at 0000000000000010
[  548.452036] IP: [<ffffffffc020ffc9>]
v4l_vb2q_enable_media_source+0x9/0x50 [videodev]
[  548.460792] PGD b820e067 PUD bb3df067 PMD 0
[  548.465582] Oops: 0000 [#1] SMP

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Reported-by: Olli Salonen <olli.salonen@iki.fi>
Tested-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-05 08:18:21 -03:00
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