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rtc: sun6i: Fix return value check in sun6i_rtc_clk_init()

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In case of error, the function of_io_request_and_map() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

Fixes: 847b8bf62eb4 ("rtc: sun6i: Expose the 32kHz oscillator")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Wei Yongjun 2017-02-09 00:16:13 +00:00 committed by Alexandre Belloni
parent 93946c49cd
commit aaa65a9ce6
1 changed files with 1 additions and 1 deletions
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2
drivers/rtc/rtc-sun6i.c
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@ -202,7 +202,7 @@ static void __init sun6i_rtc_clk_init(struct device_node *node)
spin_lock_init(&rtc->lock);
rtc->base = of_io_request_and_map(node, 0, of_node_full_name(node));
if (!rtc->base) {
if (IS_ERR(rtc->base)) {
pr_crit("Can't map RTC registers");
return;
}