diff --git a/sys/dev/hea/eni_transmit.c b/sys/dev/hea/eni_transmit.c
index c80438374673..2e2960ad3898 100644
--- a/sys/dev/hea/eni_transmit.c
+++ b/sys/dev/hea/eni_transmit.c
@@ -124,7 +124,7 @@ int	size;
 		dma_list[(*idx)++] = ( dsize >> 3 ) << DMA_COUNT_SHIFT |
 			val << DMA_VCC_SHIFT | DMA_8WORD;
 		dma_list[*idx] = (u_long)DMA_GET_ADDR ( addr, dsize, 0, 0 );
-		if ( dma_list[*idx] == NULL ) {
+		if ( dma_list[*idx] == 0 ) {
 			if ( rx )
 				eup->eu_stats.eni_st_drv.drv_rv_segdma++;
 			else
@@ -164,7 +164,7 @@ int	size;
 		dma_list[(*idx)++] = ( dsize >> 2 ) << DMA_COUNT_SHIFT |
 			val << DMA_VCC_SHIFT | DMA_4WORD;
 		dma_list[*idx] = (u_long)DMA_GET_ADDR ( addr, dsize, 0, 0 );
-		if ( dma_list[*idx] == NULL ) {
+		if ( dma_list[*idx] == 0 ) {
 			if ( rx )
 				eup->eu_stats.eni_st_drv.drv_rv_segdma++;
 			else
@@ -199,7 +199,7 @@ int	size;
 		dma_list[(*idx)++] = ( size ) << DMA_COUNT_SHIFT |
 			val << DMA_VCC_SHIFT | DMA_WORD;
 		dma_list[*idx] = (u_long)DMA_GET_ADDR ( addr, size, 0, 0 );
-		if ( dma_list[*idx] == NULL ) {
+		if ( dma_list[*idx] == 0 ) {
 			if ( rx )
 				eup->eu_stats.eni_st_drv.drv_rv_segdma++;
 			else