net: ibm: emac: mal: add dcr_unmap to _remove

It's done in probe so it should be undone here.

Fixes: 1d3bb99 ("Device tree aware EMAC driver")
Signed-off-by: Rosen Penev <[email protected]>
Reviewed-by: Breno Leitao <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: neheb

drivers/net/ethernet/ibm/emac/mal.c

@@ -742,6 +742,8 @@ static void mal_remove(struct platform_device *ofdev)
 
 	free_netdev(mal->dummy_dev);
 
+	dcr_unmap(mal->dcr_host, 0x100);
+
 	dma_free_coherent(&ofdev->dev,
 			  sizeof(struct mal_descriptor) *
 			  (NUM_TX_BUFF * mal->num_tx_chans +