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 <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/watchdog/designware_wdt.c b/drivers/watchdog/designware_wdt.c
index 709a67f..9e54871 100644
--- a/drivers/watchdog/designware_wdt.c
+++ b/drivers/watchdog/designware_wdt.c
@@ -131,11 +131,13 @@
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 @@
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 = {