This is a note to let you know that I've just added the patch titled
rtc: st-lpc: Add missing clk_disable_unprepare in st_rtc_probe()
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rtc-st-lpc-add-missing-clk_disable_unprepare-in-st_r.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 2492dfbe90cb75037622ac30b9a7d1f6b1683d28
Author: Gaosheng Cui <cuigaosheng1@xxxxxxxxxx>
Date: Wed Nov 23 09:48:05 2022 +0800
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: b5b2bdfc2893 ("rtc: st: Add new driver for ST's LPC RTC")
Signed-off-by: Gaosheng Cui <cuigaosheng1@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20221123014805.1993052-1-cuigaosheng1@xxxxxxxxxx
Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/rtc/rtc-st-lpc.c b/drivers/rtc/rtc-st-lpc.c
index 74c0a336ceea..85756ef63c22 100644
--- a/drivers/rtc/rtc-st-lpc.c
+++ b/drivers/rtc/rtc-st-lpc.c
@@ -249,6 +249,7 @@ static int st_rtc_probe(struct platform_device *pdev)
rtc->clkrate = clk_get_rate(rtc->clk);
if (!rtc->clkrate) {
+ clk_disable_unprepare(rtc->clk);
dev_err(&pdev->dev, "Unable to fetch clock rate\n");
return -EINVAL;
}
