target/linux/generic/backport-6.1/824-v6.5-leds-trigger-netdev-Remove-NULL-check-before-dev_-pu.patch

   1 From af7320ecae0ce646fd2c4a88341a3fbc243553da Mon Sep 17 00:00:00 2001
   2 From: Yang Li <yang.lee@linux.alibaba.com>
   3 Date: Thu, 11 May 2023 15:08:20 +0800
   4 Subject: [PATCH] leds: trigger: netdev: Remove NULL check before dev_{put,
   5  hold}
   6
   7 The call netdev_{put, hold} of dev_{put, hold} will check NULL,
   8 so there is no need to check before using dev_{put, hold},
   9 remove it to silence the warnings:
  10
  11 ./drivers/leds/trigger/ledtrig-netdev.c:291:3-10: WARNING: NULL check before dev_{put, hold} functions is not needed.
  12 ./drivers/leds/trigger/ledtrig-netdev.c:401:2-9: WARNING: NULL check before dev_{put, hold} functions is not needed.
  13
  14 Reported-by: Abaci Robot <abaci@linux.alibaba.com>
  15 Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=4929
  16 Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
  17 Link: https://lore.kernel.org/r/20230511070820.52731-1-yang.lee@linux.alibaba.com
  18 Signed-off-by: Lee Jones <lee@kernel.org>
  19 ---
  20  drivers/leds/trigger/ledtrig-netdev.c | 6 ++----
  21  1 file changed, 2 insertions(+), 4 deletions(-)
  22
  23 --- a/drivers/leds/trigger/ledtrig-netdev.c
  24 +++ b/drivers/leds/trigger/ledtrig-netdev.c
  25 @@ -462,8 +462,7 @@ static int netdev_trig_notify(struct not
  26                 get_device_state(trigger_data);
  27                 fallthrough;
  28         case NETDEV_REGISTER:
  29 -               if (trigger_data->net_dev)
  30 -                       dev_put(trigger_data->net_dev);
  31 +               dev_put(trigger_data->net_dev);
  32                 dev_hold(dev);
  33                 trigger_data->net_dev = dev;
  34                 break;
  35 @@ -594,8 +593,7 @@ static void netdev_trig_deactivate(struc
  36
  37         cancel_delayed_work_sync(&trigger_data->work);
  38
  39 -       if (trigger_data->net_dev)
  40 -               dev_put(trigger_data->net_dev);
  41 +       dev_put(trigger_data->net_dev);
  42
  43         kfree(trigger_data);
  44  }