rtc: brcmstb-waketimer: Remove redundant null check before clk_disable_unprepare

Because clk_disable_unprepare() already checked NULL clock parameter,
so the additional check is unnecessary, just remove it.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20201113074538.65028-1-vulab@iscas.ac.cn

diff --git a/drivers/rtc/rtc-brcmstb-waketimer.c b/drivers/rtc/rtc-brcmstb-waketimer.c
index 4fee57c512802c6d0602e3ac5da164f4b990a157..375a9987a1d68c4ec5b9e1253f2f59aff31aca9e 100644 (file)
--- a/drivers/rtc/rtc-brcmstb-waketimer.c
+++ b/drivers/rtc/rtc-brcmstb-waketimer.c
@@ -264,8 +264,7 @@ err_notifier:
        unregister_reboot_notifier(&timer->reboot_notifier);
 
 err_clk:
-       if (timer->clk)
-               clk_disable_unprepare(timer->clk);
+       clk_disable_unprepare(timer->clk);
 
        return ret;
 }