Merge 93576eea98913301f18386035eefcb23935cc32c on remote branch
Change-Id: I5f6f0048e61ba486392e061aa4a3f5216c0fba4d
diff --git a/hal/Usb.cpp b/hal/Usb.cpp
index e522979..14a9d5f 100644
--- a/hal/Usb.cpp
+++ b/hal/Usb.cpp
@@ -1024,9 +1024,16 @@
static bool checkUsbInterfaceAutoSuspend(const std::string& devicePath,
const std::string &intf) {
std::string bInterfaceClass;
- int interfaceClass, ret = -1;
+ int interfaceClass, ret = -1, retry = 3;
- readFile(devicePath + "/" + intf + "/bInterfaceClass", &bInterfaceClass);
+ do {
+ readFile(devicePath + "/" + intf + "/bInterfaceClass",
+ &bInterfaceClass);
+ } while ((--retry > 0) && (bInterfaceClass.length() == 0));
+
+ if (bInterfaceClass.length() == 0) {
+ return false;
+ }
interfaceClass = std::stoi(bInterfaceClass, 0, 16);
// allow autosuspend for certain class devices
diff --git a/hal/UsbGadget.cpp b/hal/UsbGadget.cpp
index 3757671..78e73d5 100644
--- a/hal/UsbGadget.cpp
+++ b/hal/UsbGadget.cpp
@@ -233,6 +233,8 @@
Return<void> UsbGadget::getCurrentUsbFunctions(
const sp<V1_0::IUsbGadgetCallback> &callback) {
+ if (!callback) return Void();
+
Return<void> ret = callback->getCurrentUsbFunctionsCb(
mCurrentUsbFunctions, mCurrentUsbFunctionsApplied
? Status::FUNCTIONS_APPLIED