target/linux/ath79/patches-4.14/0002-watchdog-ath79-fix-maximum-timeout.patch

   1 From 5f5c9858af167f842ee8df053920b98387a71af1 Mon Sep 17 00:00:00 2001
   2 From: John Crispin <john@phrozen.org>
   3 Date: Mon, 5 Mar 2018 11:41:25 +0100
   4 Subject: [PATCH 02/27] watchdog: ath79: fix maximum timeout
   5
   6 If the userland tries to set a timeout higher than the max_timeout,
   7 then we should fallback to max_timeout.
   8
   9 Signed-off-by: John Crispin <john@phrozen.org>
  10 ---
  11  drivers/watchdog/ath79_wdt.c | 8 ++++++--
  12  1 file changed, 6 insertions(+), 2 deletions(-)
  13
  14 --- a/drivers/watchdog/ath79_wdt.c
  15 +++ b/drivers/watchdog/ath79_wdt.c
  16 @@ -115,10 +115,14 @@ static inline void ath79_wdt_disable(voi
  17
  18  static int ath79_wdt_set_timeout(int val)
  19  {
  20 -       if (val < 1 || val > max_timeout)
  21 +       if (val < 1)
  22                 return -EINVAL;
  23
  24 -       timeout = val;
  25 +       if (val > max_timeout)
  26 +               timeout = max_timeout;
  27 +       else
  28 +               timeout = val;
  29 +
  30         ath79_wdt_keepalive();
  31
  32         return 0;