Avoid reading at negative offsets

PlayerServiceFileSource had the same logic as FileSource that could
cause reading at negative data source offsets, so fix that too.

Test: build
Bug: 141242340
Change-Id: I60226d85ece83339444d9ec1c0a741271e33e127

parent 04e4465a

media/libmediaplayerservice/datasource/PlayerServiceFileSource.cpp

+3 −0

Original line number	Diff line number	Diff line
		@@ -71,6 +71,9 @@ ssize_t PlayerServiceFileSource::readAt(off64_t offset, void *data, size_t size)
		Mutex::Autolock autoLock(mLock);

		if (mLength >= 0) {
		if (offset < 0) {
		return UNKNOWN_ERROR;
		}
		if (offset >= mLength) {
		return 0; // read beyond EOF.
		}