V4L/DVB (6188): Avoid a NULL pointer dereference during mpeg_open()
Bug: With a hardware encoder board installed as cx88[1] and a non-encoder boards installed as cx88[0], an OOPS is generated during cx8802_get_device() called from mpeg_open(). Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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@ -580,7 +580,7 @@ struct cx8802_dev * cx8802_get_device(struct inode *inode)
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list_for_each(list,&cx8802_devlist) {
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h = list_entry(list, struct cx8802_dev, devlist);
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if (h->mpeg_dev->minor == minor)
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if (h->mpeg_dev && h->mpeg_dev->minor == minor)
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return h;
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}
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