mISDN: Fix NULL pointer bug in if-condition of mISDN_dsp
Fix a bug (was introduced by a cut & paste error) in cases when dsp->conf was NULL. Signed-off-by: NAndreas Eversberg <jolly@eversberg.eu> Signed-off-by: NKarsten Keil <keil@b1-systems.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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