linux-kernel - Re: [PATCH v5 3/3] coresight: prevent deactivate active config while enabling the config

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Message-ID: <20250514124710.GA389636@e132581.arm.com>
Date: Wed, 14 May 2025 13:47:10 +0100
From: Leo Yan <leo.yan@....com>
To: Yeoreum Yun <yeoreum.yun@....com>
Cc: suzuki.poulose@....com, mike.leach@...aro.org, james.clark@...aro.org,
	alexander.shishkin@...ux.intel.com, coresight@...ts.linaro.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 3/3] coresight: prevent deactivate active config while
 enabling the config

Hi Levi,

On Wed, May 14, 2025 at 12:04:39PM +0100, Yeoreum Yun wrote:

[...]


> > > +static bool cscfg_config_desc_get(struct cscfg_config_desc *config_desc)
> >
> > I would like to change the return type to int, so the error is handled
> > within the function.  As a result, the caller _cscfg_activate_config()
> > does not need to explicitly return an error value.
> 
> I think it's not good since cscfg_config_desc_get() failed only when
> try_module_get() failed and its return type is "bool".

Understood.  I thought it would be easier for later maintenance if we
encapsulate error handling in the function, but I don't have strong
opinion.  It is fine for me to return bool type.

Thanks,
Leo