Fix syntax error

theano/gpuarray/dnn_gi.c

@@ -167,7 +167,7 @@ APPLY_SPECIFIC(conv_gi)(PyGpuArrayObject *kerns, PyGpuArrayObject *output,
     err = cudnnFindConvolutionBackwardDataAlgorithmEx(
       _handle, APPLY_SPECIFIC(kerns), PyGpuArray_DEV_DATA(kerns),
       APPLY_SPECIFIC(output), PyGpuArray_DEV_DATA(output), desc,
-      APPLY_SPECIFIC(input), PyGpuArray_DEV_DATA(input),
+      APPLY_SPECIFIC(input), PyGpuArray_DEV_DATA(*input),
       1, &count, &choice, *(void **)tmpmem, free);
     gpudata_release(tmpmem);