The current code used a hand-crafted formula to convert milliseconds to jiffies, replace it with the msecs_to_jiffies() function. Furthermore, use a while loop instead of for loop for shorter lines and simplicity. Signed-off-by: Barnabás Pőcze <pobrn@xxxxxxxxxxxxxx> diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index 5978770bac2a..bb7eb9c1f0ec 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -19,6 +19,7 @@ #include <linux/init.h> #include <linux/input.h> #include <linux/input/sparse-keymap.h> +#include <linux/jiffies.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/platform_device.h> @@ -221,8 +222,9 @@ static int read_ec_data(acpi_handle handle, int cmd, unsigned long *data) if (method_vpcw(handle, 1, cmd)) return -1; - for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1; - time_before(jiffies, end_jiffies);) { + end_jiffies = jiffies + msecs_to_jiffies(IDEAPAD_EC_TIMEOUT) + 1; + + while (time_before(jiffies, end_jiffies)) { schedule(); if (method_vpcr(handle, 1, &val)) return -1; @@ -247,8 +249,9 @@ static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data) if (method_vpcw(handle, 1, cmd)) return -1; - for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1; - time_before(jiffies, end_jiffies);) { + end_jiffies = jiffies + msecs_to_jiffies(IDEAPAD_EC_TIMEOUT) + 1; + + while (time_before(jiffies, end_jiffies)) { schedule(); if (method_vpcr(handle, 1, &val)) return -1; -- 2.30.0