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fix possible deadlock since code can return without unlocking the Mutex

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This commit is contained in:
Tobias Wellnitz, DH1TW 2018-01-01 19:57:13 +01:00
parent b0b0338128
commit 0dcea05fb8
1 changed files with 1 additions and 1 deletions
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2
server/rpc_server.go
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@ -182,12 +182,12 @@ func (s *rpcServer) Subscribe(sb Subscriber) error {
} }
s.Lock() s.Lock()
defer s.Unlock()
_, ok = s.subscribers[sub] _, ok = s.subscribers[sub]
if ok { if ok {
return fmt.Errorf("subscriber %v already exists", s) return fmt.Errorf("subscriber %v already exists", s)
} }
s.subscribers[sub] = nil s.subscribers[sub] = nil
s.Unlock()
return nil return nil
} }