From 97bcdd28addde4233b6c53c03712eed5a807854c Mon Sep 17 00:00:00 2001 From: Sean Anderson Date: Wed, 10 Mar 2021 21:02:20 -0500 Subject: [PATCH] wdt: dw: Free the clock on error The clock subsystem requires that clk_free be called on clocks obtained via clk_get_*. Signed-off-by: Sean Anderson Reviewed-by: Simon Glass --- drivers/watchdog/designware_wdt.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/drivers/watchdog/designware_wdt.c b/drivers/watchdog/designware_wdt.c index 709a67fbc3..9e5487168c 100644 --- a/drivers/watchdog/designware_wdt.c +++ b/drivers/watchdog/designware_wdt.c @@ -131,11 +131,13 @@ static int designware_wdt_probe(struct udevice *dev) ret = clk_enable(&clk); if (ret) - return ret; + goto err; priv->clk_khz = clk_get_rate(&clk) / 1000; - if (!priv->clk_khz) - return -EINVAL; + if (!priv->clk_khz) { + ret = -EINVAL; + goto err; + } #else priv->clk_khz = CONFIG_DW_WDT_CLOCK_KHZ; #endif @@ -145,15 +147,21 @@ static int designware_wdt_probe(struct udevice *dev) ret = reset_get_bulk(dev, &resets); if (ret) - return ret; + goto err; ret = reset_deassert_bulk(&resets); if (ret) - return ret; + goto err; } /* reset to disable the watchdog */ return designware_wdt_stop(dev); + +err: +#if CONFIG_IS_ENABLED(CLK) + clk_free(&clk); +#endif + return ret; } static const struct wdt_ops designware_wdt_ops = {