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From: Larry Finger <Larry.Finger@lwfinger.net>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: "Fabio M. De Francesco" <fmdefrancesco@gmail.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-staging@lists.linux.dev,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] staging: r8188eu: core: Remove rtw_mfree_all_stainfo()
Date: Wed, 4 Aug 2021 13:10:37 -0500	[thread overview]
Message-ID: <406c6f84-a2f6-1a0e-3a52-9406df41973c@lwfinger.net> (raw)
In-Reply-To: <CAP71bdUDEX=B6Km9wZO1AyHpVzqqkGNw6xNvspBz3qUABSKMEQ@mail.gmail.com>

On 8/4/21 10:09 AM, Larry Finger wrote:
> In other Realtek drivers, the while loop has a call to rtw_mfree_stainfo(psta). 
> That routine does not exist in this driver, but I think it should. In a few rare 
> instances, the driver leaks some memory - this missing code may explain that. In 
> any case, this patch should be dropped as the fix will require testing.

After looking at the original code for several other drivers, routine 
rtw_mfree_stainfo() just ends up calling a couple of routines that free a 
spinlock. That operation for Windows and FreeBSD is not trivial, but for Linux, 
the routine does nothing. Thus, despite its name, rtw_mfree_stainfo() does not 
free anything, and it can be deleted.

The original patch is

Acked-by: Larry Finger <Larry.Finger@lwfinger.net>

Larry


  parent reply	other threads:[~2021-08-04 18:10 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-02  0:55 [PATCH] staging: r8188eu: core: Remove rtw_mfree_all_stainfo() Fabio M. De Francesco
2021-08-04 13:01 ` Dan Carpenter
2021-08-04 15:12   ` Fabio M. De Francesco
     [not found]   ` <CAP71bdUDEX=B6Km9wZO1AyHpVzqqkGNw6xNvspBz3qUABSKMEQ@mail.gmail.com>
2021-08-04 18:10     ` Larry Finger [this message]
2021-08-05 10:28       ` Dan Carpenter
2021-08-05 11:47       ` Fabio M. De Francesco

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