libcamera: mali-c55: Simplify bufferReady()

The PipelineHandler::completeBuffer() base class function returns
a boolean to indicate if there still are pending buffers in the
Request.

Simplify the bufferReady() function in the Mali-C55 pipeline handler
using the completeBuffer() return value.

Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

src/libcamera/pipeline/mali-c55/mali-c55.cpp

@@ -893,12 +893,8 @@ void PipelineHandlerMaliC55::imageBufferReady(FrameBuffer *buffer)
 {
 	Request *request = buffer->request();
 
-	completeBuffer(request, buffer);
-
-	if (request->hasPendingBuffers())
-		return;
-
-	completeRequest(request);
+	if (completeBuffer(request, buffer))
+		completeRequest(request);
 }
 
 void PipelineHandlerMaliC55::registerMaliCamera(std::unique_ptr<MaliC55CameraData> data,