clk: clk-wm831x: fix a logic error

Fix bug https://bugzilla.kernel.org/show_bug.cgi?id=188561. Function
wm831x_clkout_is_prepared() returns "true" when it fails to read
CLOCK_CONTROL_1. "true" means the device is already prepared. So
return "true" on the read failure seems improper.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Fixes: f05259a6ffa4 ("clk: wm831x: Add initial WM831x clock driver")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

diff --git a/drivers/clk/clk-wm831x.c b/drivers/clk/clk-wm831x.c
index f4fdac5..0621fbf 100644 (file)
--- a/drivers/clk/clk-wm831x.c
+++ b/drivers/clk/clk-wm831x.c
@@ -243,7 +243,7 @@ static int wm831x_clkout_is_prepared(struct clk_hw *hw)
        if (ret < 0) {
                dev_err(wm831x->dev, "Unable to read CLOCK_CONTROL_1: %d\n",
                        ret);
-               return true;
+               return false;
        }
 
        return (ret & WM831X_CLKOUT_ENA) != 0;