clk: at91: fix clk-generated parenting

clk_generated_startup is called after clk_hw_register. So the first call to
get_parent will not have the correct value (i.e. 0) and because this is
cached, it may never be updated.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Fixes: df70aeef6083 ("clk: at91: add generated clock driver")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
diff --git a/drivers/clk/at91/clk-generated.c b/drivers/clk/at91/clk-generated.c
index 4e1cd5a..70474bd 100644
--- a/drivers/clk/at91/clk-generated.c
+++ b/drivers/clk/at91/clk-generated.c
@@ -260,13 +260,12 @@
 	gck->lock = lock;
 	gck->range = *range;
 
+	clk_generated_startup(gck);
 	hw = &gck->hw;
 	ret = clk_hw_register(NULL, &gck->hw);
 	if (ret) {
 		kfree(gck);
 		hw = ERR_PTR(ret);
-	} else
-		clk_generated_startup(gck);
 
 	return hw;
 }