[PATCH 4.9 28/32] clk: qcom: rcg: Return failure for RCG update

[Greg Kroah-Hartman]

From: Taniya Das <tdas@xxxxxxxxxxxxxx>

commit 21ea4b62e1f3dc258001a68da98c9663a9dbd6c7 upstream.

In case of update config failure, return -EBUSY, so that consumers could
handle the failure gracefully.

Signed-off-by: Taniya Das <tdas@xxxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/1557339895-21952-2-git-send-email-tdas@xxxxxxxxxxxxxx
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/clk/qcom/clk-rcg2.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/clk/qcom/clk-rcg2.c
+++ b/drivers/clk/qcom/clk-rcg2.c
@@ -107,7 +107,7 @@ static int update_config(struct clk_rcg2
 	}
 
 	WARN(1, "%s: rcg didn't update its configuration.", name);
-	return 0;
+	return -EBUSY;
 }
 
 static int clk_rcg2_set_parent(struct clk_hw *hw, u8 index)