target/linux/generic/backport-5.15/818-v6.5-07-leds-trigger-netdev-reject-interval-store-for-hw_con.patch

   1 From c84c80c7388f887b10dafd70fc55bc6c5fe9fa5a Mon Sep 17 00:00:00 2001
   2 From: Christian Marangi <ansuelsmth@gmail.com>
   3 Date: Mon, 29 May 2023 18:32:37 +0200
   4 Subject: [PATCH 07/13] leds: trigger: netdev: reject interval store for
   5  hw_control
   6
   7 Reject interval store with hw_control enabled. It's are currently not
   8 supported and MUST be set to the default value with hw control enabled.
   9
  10 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
  11 Reviewed-by: Andrew Lunn <andrew@lunn.ch>
  12 Signed-off-by: David S. Miller <davem@davemloft.net>
  13 ---
  14  drivers/leds/trigger/ledtrig-netdev.c | 3 +++
  15  1 file changed, 3 insertions(+)
  16
  17 --- a/drivers/leds/trigger/ledtrig-netdev.c
  18 +++ b/drivers/leds/trigger/ledtrig-netdev.c
  19 @@ -265,6 +265,9 @@ static ssize_t interval_store(struct dev
  20         unsigned long value;
  21         int ret;
  22
  23 +       if (trigger_data->hw_control)
  24 +               return -EINVAL;
  25 +
  26         ret = kstrtoul(buf, 0, &value);
  27         if (ret)
  28                 return ret;