Fix Coverity null pointer dereference error

nyalldawson · nyalldawson · commit ce6783a34b39 · 2017-03-21T15:35:07.000+10:00
diff --git a/src/providers/postgres/qgspostgresprovider.cpp b/src/providers/postgres/qgspostgresprovider.cpp
@@ -4665,8 +4665,8 @@ QGISEXTERN bool deleteStyleById( const QString &uri, QString styleId, QString &e
     {
       deleted = true;
     }
+    conn->unref();
   }
-  conn->unref();
   return deleted;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -4665,8 +4665,8 @@ QGISEXTERN bool deleteStyleById( const QString &uri, QString styleId, QString &e`
`4665`	`4665`	`{`
`4666`	`4666`	`deleted = true;`
`4667`	`4667`	`}`
	`4668`	`+ conn->unref();`
`4668`	`4669`	`}`
`4669`		`- conn->unref();`
`4670`	`4670`	`return deleted;`
`4671`	`4671`	`}`
`4672`	`4672`