V4L/DVB (8005): Fix OOPS if frontend is null
authorMauro Carvalho Chehab <mchehab@infradead.org>
Sat, 7 Jun 2008 18:54:10 +0000 (15:54 -0300)
committerMauro Carvalho Chehab <mchehab@infradead.org>
Thu, 26 Jun 2008 18:58:41 +0000 (15:58 -0300)
Thanks to timf <timf@iinet.net.au> and Mike Galbraith <efault@gmx.de> to report
this issue.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

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