Commit 950b6c2d authored Sep 30, 2016 by Matt Ranostay Committed by Sebastian Reichel Oct 19, 2016

power: supply: bq27xxx_battery: don't update poll_interval param if same

To avoid canceling the delayed workqueue needlessly, and scheduling an
immediate polling. Check if the new poll_interval value is different
than the previous setting.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Matt Ranostay <matt@ranostay.consulting>
Signed-off-by: Sebastian Reichel <sre@kernel.org>

parent 32c52eff

drivers/power/supply/bq27xxx_battery.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -397,10 +397,11 @@ static LIST_HEAD(bq27xxx_battery_devices);
		static int poll_interval_param_set(const char val, const struct kernel_param kp)
		{
		struct bq27xxx_device_info *di;
		unsigned int prev_val = (unsigned int ) kp->arg;
		int ret;

		ret = param_set_uint(val, kp);
		if (ret < 0)
		if (ret < 0 \|\| prev_val == (unsigned int ) kp->arg)
		return ret;

		mutex_lock(&bq27xxx_list_lock);

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