commit fca2e7420997f0738435420c5363d96001467af1
author Yin-Chia Yeh <yinchiayeh@google.com> Tue Jan 31 16:00:20 2017 -0800
committer Yin-Chia Yeh <yinchiayeh@google.com> Tue Jan 31 17:40:23 2017 -0800
tree 57c437efcaafbb790094feb52cc903a25bcee1ec
parent f2336a17920bb46afa6ef2126a304313142f1381

Camera: call setCallback before open_legacy

Some open_legacy implementations require a valid callback.

Test: the failing open_legacy call succeeds
Bug: 34854786
Change-Id: I461c7622bdf46a7cb7febfb7eeeb083288b4af03

camera/common/1.0/default/CameraModule.cpp

diff --git a/camera/common/1.0/default/CameraModule.cpp b/camera/common/1.0/default/CameraModule.cpp
index 5d9ae4d..3a4bc9c 100644
--- a/camera/common/1.0/default/CameraModule.cpp
+++ b/camera/common/1.0/default/CameraModule.cpp
@@ -369,9 +369,11 @@
 }
 
 int CameraModule::setCallbacks(const camera_module_callbacks_t *callbacks) {
-    int res;
+    int res = OK;
     ATRACE_BEGIN("camera_module->set_callbacks");
-    res = mModule->set_callbacks(callbacks);
+    if (getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_1) {
+        res = mModule->set_callbacks(callbacks);
+    }
     ATRACE_END();
     return res;
 }

camera/provider/2.4/default/CameraProvider.cpp

diff --git a/camera/provider/2.4/default/CameraProvider.cpp b/camera/provider/2.4/default/CameraProvider.cpp
index 1a34aa6..d045e06 100644
--- a/camera/provider/2.4/default/CameraProvider.cpp
+++ b/camera/provider/2.4/default/CameraProvider.cpp
@@ -184,13 +184,20 @@
     mModule = new CameraModule(rawModule);
     err = mModule->init();
     if (err != OK) {
-        ALOGE("Could not initialize camera HAL module: %d (%s)", err,
-            strerror(-err));
+        ALOGE("Could not initialize camera HAL module: %d (%s)", err, strerror(-err));
         mModule.clear();
         return true;
     }
     ALOGI("Loaded \"%s\" camera module", mModule->getModuleName());
 
+    // Setup callback now because we are going to try openLegacy next
+    err = mModule->setCallbacks(this);
+    if (err != OK) {
+        ALOGE("Could not set camera module callback: %d (%s)", err, strerror(-err));
+        mModule.clear();
+        return true;
+    }
+
     mNumberOfLegacyCameras = mModule->getNumberOfCameras();
     for (int i = 0; i < mNumberOfLegacyCameras; i++) {
         char cameraId[kMaxCameraIdLen];
@@ -289,11 +296,9 @@
 
 // Methods from ::android::hardware::camera::provider::V2_4::ICameraProvider follow.
 Return<Status> CameraProvider::setCallback(const sp<ICameraProviderCallback>& callback)  {
-    {
-        Mutex::Autolock _l(mCbLock);
-        mCallbacks = callback;
-    } // release lock here because HAL might send callbacks in setCallbacks call
-    return getHidlStatus(mModule->setCallbacks(this));
+    Mutex::Autolock _l(mCbLock);
+    mCallbacks = callback;
+    return Status::OK;
 }
 
 Return<void> CameraProvider::getVendorTags(getVendorTags_cb _hidl_cb)  {