ide: tx4939ide: Fix the name used in a 'devm_request_mem_region()' call

This should be "tx4939ide" instead of "tx4938ide", but here MODNAME is even
better.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/ide/tx4939ide.c

@@ -549,7 +549,7 @@ static int __init tx4939ide_probe(struct platform_device *pdev)
 		return -ENODEV;
 
 	if (!devm_request_mem_region(&pdev->dev, res->start,
-				     resource_size(res), "tx4938ide"))
+				     resource_size(res), MODNAME))
 		return -EBUSY;
 	mapbase = (unsigned long)devm_ioremap(&pdev->dev, res->start,
 					      resource_size(res));