sparc: Fix sbus_alloc_coherent error handling.

Order of kfree and free_pages were swapped in the error handling.
Signed-off-by: Kristoffer Glembo <kristoffer@gaisler.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc/kernel/ioport.c

@@ -302,9 +302,9 @@ static void *sbus_alloc_coherent(struct device *dev, size_t len,
 err_noiommu:
 	release_resource(res);
 err_nova:
-	free_pages(va, order);
-err_nomem:
 	kfree(res);
+err_nomem:
+	free_pages(va, order);
 err_nopages:
 	return NULL;
 }