clk: wm831x: Initialise wm831x pointer on init

commit 08442ce993deeb15a070c14cc3f3459e87d111e0 upstream.

Otherwise any attempt to interact with the hardware will crash. This is
what happens when drivers get written blind.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/clk/clk-wm831x.c b/drivers/clk/clk-wm831x.c
index 16ed068..917a3ab 100644 (file)
--- a/drivers/clk/clk-wm831x.c
+++ b/drivers/clk/clk-wm831x.c
@@ -360,6 +360,8 @@ static int wm831x_clk_probe(struct platform_device *pdev)
        if (!clkdata)
                return -ENOMEM;
 
+       clkdata->wm831x = wm831x;
+
        /* XTAL_ENA can only be set via OTP/InstantConfig so just read once */
        ret = wm831x_reg_read(wm831x, WM831X_CLOCK_CONTROL_2);
        if (ret < 0) {