Maksim Yevmenkin 90326507bd Properly return error code to the caller. This should fix the following
panic in ng_l2cap(4).

panic: ng_l2cap_l2ca_con_req: ubt0l2cap - could not find connection!

While i'm here get rid of few goto's.

MFC after:	1 week
2009-01-19 22:06:35 +00:00
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