fix(usbgadget): add lock for logWithSupression (jetkvm#653)

Author: ym

internal/usbgadget/usbgadget.go

@@ -81,6 +81,7 @@ type UsbGadget struct {
 	log *zerolog.Logger
 
 	logSuppressionCounter map[string]int
+	logSuppressionLock    sync.Mutex
 }
 
 const configFSPath = "/sys/kernel/config"

internal/usbgadget/utils.go

@@ -82,6 +82,9 @@ func compareFileContent(oldContent []byte, newContent []byte, looserMatch bool)
 }
 
 func (u *UsbGadget) logWithSupression(counterName string, every int, logger *zerolog.Logger, err error, msg string, args ...interface{}) {
+	u.logSuppressionLock.Lock()
+	defer u.logSuppressionLock.Unlock()
+
 	if _, ok := u.logSuppressionCounter[counterName]; !ok {
 		u.logSuppressionCounter[counterName] = 0
 	} else {
@@ -100,6 +103,9 @@ func (u *UsbGadget) logWithSupression(counterName string, every int, logger *zer
 }
 
 func (u *UsbGadget) resetLogSuppressionCounter(counterName string) {
+	u.logSuppressionLock.Lock()
+	defer u.logSuppressionLock.Unlock()
+
 	if _, ok := u.logSuppressionCounter[counterName]; !ok {
 		u.logSuppressionCounter[counterName] = 0
 	}