Merge pull request #480 from gcurtis/race

stdlib: fix race with Driver.configs in Open
2018-11-10 07:56:43 -06:00 · 2018-11-10 07:56:43 -06:00 · bd37aaaa6a
parent a0d2ce5a0e 8b8e883961
commit bd37aaaa6a
1 changed files with 2 additions and 0 deletions
--- a/stdlib/sql.go
+++ b/stdlib/sql.go
@ -140,8 +140,10 @@ func (d *Driver) Open(name string) (driver.Conn, error) {
 	if len(name) >= 9 && name[0] == 0 {
 		idBuf := []byte(name)[1:9]
 		id := int64(binary.BigEndian.Uint64(idBuf))
+		d.configMutex.Lock()
 		connConfig = d.configs[id].ConnConfig
 		afterConnect = d.configs[id].AfterConnect
+		d.configMutex.Unlock()
 		name = name[9:]
 	}