Fix BUG in do_test_for_insn_bits() while testing irrelevant subdevices
that are busy.
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@ -229,6 +229,9 @@ static int do_test_for_insn_bits(comedi_t *dev,unsigned int subdevice)
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lsampl_t data[2];
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int ret;
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if(dev->subdevices[subdevice].maxdata != 1)
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return 0;
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memset(&insn,0,sizeof(insn));
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il.n_insns = 1;
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