rtc: sun6i: Fix return value check in sun6i_rtc_clk_init()
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>
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@ -202,7 +202,7 @@ static void __init sun6i_rtc_clk_init(struct device_node *node)
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spin_lock_init(&rtc->lock);
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spin_lock_init(&rtc->lock);
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rtc->base = of_io_request_and_map(node, 0, of_node_full_name(node));
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rtc->base = of_io_request_and_map(node, 0, of_node_full_name(node));
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if (!rtc->base) {
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if (IS_ERR(rtc->base)) {
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pr_crit("Can't map RTC registers");
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pr_crit("Can't map RTC registers");
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return;
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return;
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}
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}
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