Re: [PATCH] watchdog: gunyah: report system sleep operation failures

[Trilok Soni <trilokkumar.soni@oss.qualcomm.com>]

On 10/8/2026 3:34 PM, Zhang Jiaxi wrote:
> From: Jiaxi Zhang <z1529105815@outlook.com>
> 
> The system-sleep callbacks discard the errors returned by the watchdog
> start and stop operations and always report success. If stopping an
> active watchdog fails, the PM core can proceed to suspend while the
> watchdog is still counting. Failed restart on resume is also hidden from
> the PM core's callback error reporting.
> 
> Return the existing operation result when the watchdog is active. Keep
> inactive callbacks as no-ops. The start/stop command sequence, initial
> activation exception, probe registration and last-resort restart behavior
> are unchanged. Reporting a resume error does not implement recovery or
> guarantee that watchdog protection has been restored.
> 
> Signed-off-by: Jiaxi Zhang <z1529105815@outlook.com>

I see flurry of emails from you. What exactly are you testing here? Is this driven
through LLM? 

Please also fix your SOB line. 

> ---
> Clang 22.1.8 compiled the changed object on torvalds/linux
> 6c377d19d4a5116d9bec5203aa3c6c11523e7898 without diagnostics.
> Actual callback tests with modeled start/stop returns cover error propagation
> and inactive no-ops, including old-code negatives. No device PM or real
> hypervisor-error injection is claimed.
> 
>  drivers/watchdog/gunyah_wdt.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/watchdog/gunyah_wdt.c b/drivers/watchdog/gunyah_wdt.c
> --- a/drivers/watchdog/gunyah_wdt.c
> +++ b/drivers/watchdog/gunyah_wdt.c
> @@ -214,7 +214,7 @@
>  	struct watchdog_device *wdd = dev_get_drvdata(dev);
>  
>  	if (watchdog_active(wdd))
> -		gunyah_wdt_stop(wdd);
> +		return gunyah_wdt_stop(wdd);
>  
>  	return 0;
>  }
> @@ -224,7 +224,7 @@
>  	struct watchdog_device *wdd = dev_get_drvdata(dev);
>  
>  	if (watchdog_active(wdd))
> -		gunyah_wdt_start(wdd);
> +		return gunyah_wdt_start(wdd);
>  
>  	return 0;
>  }
>