diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c
index 5f710aaaf3da8d9c648248d33a98a60bfffd2859..190c0a7a1c526e4c8fb175d253c21f0c2a148d62 100644
--- a/drivers/parport/parport_gsc.c
+++ b/drivers/parport/parport_gsc.c
@@ -256,7 +256,7 @@ struct parport *parport_gsc_probe_port(unsigned long base,
 	}
 	priv->ctr = 0xc;
 	priv->ctr_writable = 0xff;
-	priv->dma_buf = 0;
+	priv->dma_buf = NULL;
 	priv->dma_handle = 0;
 	p->base = base;
 	p->base_hi = base_hi;