Camera3Device: fix dereferencing null pointer crash

It's possible that the dump is called during the device shutdown
process, where the buffer manager could be already torn down. Add
null check before calling the dump function.

Bug: 27500853
Change-Id: I179eb7ac1e81be2c196833b2c88488cd59fe2cc5

parent 9322ba85

services/camera/libcameraservice/device3/Camera3Device.cpp

+5 −3

Original line number	Diff line number	Diff line
		@@ -534,9 +534,11 @@ status_t Camera3Device::dump(int fd, const Vector<String16> &args) {
		mOutputStreams[i]->dump(fd,args);
		}

		if (mBufferManager != NULL) {
		lines = String8(" Camera3 Buffer Manager:\n");
		write(fd, lines.string(), lines.size());
		mBufferManager->dump(fd, args);
		}

		lines = String8(" In-flight requests:\n");
		if (mInFlightMap.size() == 0) {