daemon/cluster: add a missing Unlock

lzhfromustc · thaJeztah · commit d3d2e44a595b · 2020-02-28T19:10:14.000+01:00
Signed-off-by: Ziheng Liu &lt;lzhfromustc@gmail.com&gt;
(cherry picked from commit 83c0bedba914fa08c9d1f2fe1e47b38a3264777d)
Signed-off-by: Sebastiaan van Stijn &lt;github@gone.nl&gt;
Upstream-commit: 1e3971d5561a41d3065bdc7533875fc70983dae3
Component: engine
diff --git a/components/engine/daemon/cluster/swarm.go b/components/engine/daemon/cluster/swarm.go
@@ -33,6 +33,7 @@ func (c *Cluster) Init(req types.InitRequest) (string, error) {
 			// API handlers to finish before shutting down the node.
 			c.mu.Lock()
 			if !c.nr.nodeState.IsManager() {
+				c.mu.Unlock()
 				return "", errSwarmNotManager
 			}
 			c.mu.Unlock()

Original file line number	Diff line number	Diff line change
`@@ -33,6 +33,7 @@ func (c *Cluster) Init(req types.InitRequest) (string, error) {`
`33`	`33`	`// API handlers to finish before shutting down the node.`
`34`	`34`	`c.mu.Lock()`
`35`	`35`	`if !c.nr.nodeState.IsManager() {`
	`36`	`+ c.mu.Unlock()`
`36`	`37`	`return "", errSwarmNotManager`
`37`	`38`	`}`
`38`	`39`	`c.mu.Unlock()`