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Message-ID: <3fb13fee-a605-7f2e-81ad-45148082a733@gmail.com>
Date:   Sun, 3 Apr 2022 14:48:31 +0300
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Subject: Re: staging: r8188eu: how to handle nested mutex under spinlock
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To:     Michael Straube <straube.linux@gmail.com>,
        "Fabio M. De Francesco" <fmdefrancesco@gmail.com>
Cc:     Greg KH <gregkh@linuxfoundation.org>,
        Larry Finger <Larry.Finger@lwfinger.net>,
        Phillip Potter <phil@philpotter.co.uk>,
        "open list:STAGING SUBSYSTEM" <linux-staging@lists.linux.dev>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
References: <356c24cf-625b-eea2-2c04-ce132d881cac@gmail.com>
 <1813843.tdWV9SEqCh@leap> <942bbcb6-725d-9b47-5dfe-f105d30ea6b7@gmail.com>
 <7365301.EvYhyI6sBW@leap> <bf1137fa-5051-a834-0c1f-042c5a8074a3@gmail.com>
From:   Pavel Skripkin <paskripkin@gmail.com>
In-Reply-To: <bf1137fa-5051-a834-0c1f-042c5a8074a3@gmail.com>
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Hi Michael,

On 4/3/22 14:41, Michael Straube wrote:
> 
> Hi Fabio,
> 
> wait..
> 
> rtw_set_802_11_disassociate() calls rtw_pwr_wakeup() only if
> check_fwstate(pmlmepriv, _FW_LINKED) is true.
> 
> 
> 	if (check_fwstate(pmlmepriv, _FW_LINKED)) {
> 		rtw_disassoc_cmd(padapter, 0, true);
> 		rtw_indicate_disconnect(padapter);
> 		rtw_free_assoc_resources(padapter, 1);
> 		rtw_pwr_wakeup(padapter);
> 	}
> 

msleep() cannot be called in atomic context:

drivers/staging/r8188eu/core/rtw_pwrctrl.c:379

  	if (pwrpriv->ps_processing) {
  		while (pwrpriv->ps_processing && rtw_get_passing_time_ms(start) <= 3000)
  			msleep(10);
  	}


With regards,
Pavel Skripkin