task_wdt: ensure hw wdt is started before being fed

If a fallback hardware watchdog is used, it is fed together with the
task watchdog in task_wdt_feed. However, the hardware watchdog was
not yet set up before the first call to task_wdt_feed.

This commit fixes the order of wdt_setup and task_wdt_feed calls.

Fixes #39523

Signed-off-by: Martin Jäger <[email protected]>

Author: martinjaeger

subsys/task_wdt/task_wdt.c

@@ -164,7 +164,6 @@ int task_wdt_add(uint32_t reload_period, task_wdt_callback_t callback,
 			channels[id].user_data = user_data;
 			channels[id].timeout_abs_ticks = K_TICKS_FOREVER;
 			channels[id].callback = callback;
-			task_wdt_feed(id);
 
 #ifdef CONFIG_TASK_WDT_HW_FALLBACK
 			if (!hw_wdt_started && hw_wdt_dev) {
@@ -174,6 +173,9 @@ int task_wdt_add(uint32_t reload_period, task_wdt_callback_t callback,
 				hw_wdt_started = true;
 			}
 #endif
+			/* must be called after hw wdt has been started */
+			task_wdt_feed(id);
+
 			return id;
 		}
 	}