rtc: st-lpc: Add missing clk_disable_unprepare in st_rtc_probe()

[ Upstream commit 5fb733d7bd6949e90028efdce8bd528c6ab7cf1e ]

The clk_disable_unprepare() should be called in the error handling
of clk_get_rate(), fix it.

Fixes: b5b2bdfc28 ("rtc: st: Add new driver for ST's LPC RTC")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Link: https://lore.kernel.org/r/20221123014805.1993052-1-cuigaosheng1@huawei.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Gaosheng Cui 2022-11-23 09:48:05 +08:00 committed by Greg Kroah-Hartman
parent 1240ed71a0
commit 686f0793f7

View File

@ -241,6 +241,7 @@ static int st_rtc_probe(struct platform_device *pdev)
rtc->clkrate = clk_get_rate(rtc->clk); rtc->clkrate = clk_get_rate(rtc->clk);
if (!rtc->clkrate) { if (!rtc->clkrate) {
clk_disable_unprepare(rtc->clk);
dev_err(&pdev->dev, "Unable to fetch clock rate\n"); dev_err(&pdev->dev, "Unable to fetch clock rate\n");
return -EINVAL; return -EINVAL;
} }