isdn: gigaset: add missing unlock
commit 7e27a0ae upstream. We should unlock here. This is the only place where we return from the function with the lock held. The caller isn't expecting it. Signed-off-by:Dan Carpenter <error27@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
Tilman Schmidt <tilman@imap.cc> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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