Merge "Camera API1: Fix ZSLProcessor3 deadlock" into lmp-dev
diff --git a/services/camera/libcameraservice/api1/client2/ZslProcessor3.cpp b/services/camera/libcameraservice/api1/client2/ZslProcessor3.cpp
index b388079..3999047 100644
--- a/services/camera/libcameraservice/api1/client2/ZslProcessor3.cpp
+++ b/services/camera/libcameraservice/api1/client2/ZslProcessor3.cpp
@@ -554,13 +554,15 @@
}
void ZslProcessor3::onBufferReleased(const BufferInfo& bufferInfo) {
- Mutex::Autolock l(mInputMutex);
// ignore output buffers
if (bufferInfo.mOutput) {
return;
}
+ // Lock mutex only once we know this is an input buffer returned to avoid
+ // potential deadlock
+ Mutex::Autolock l(mInputMutex);
// TODO: Verify that the buffer is in our queue by looking at timestamp
// theoretically unnecessary unless we change the following assumptions:
// -- only 1 buffer reprocessed at a time (which is the case now)