From: Ira Weiny <ira.weiny@intel.com>
To: "Fabio M. De Francesco" <fmdefrancesco@gmail.com>
Cc: Larry Finger <Larry.Finger@lwfinger.net>,
Phillip Potter <phil@philpotter.co.uk>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org,
outreachy@lists.linux.dev
Subject: Re: [PATCH] staging: r8188eu: Remove goto to no-op exit label
Date: Fri, 1 Apr 2022 13:41:40 -0700 [thread overview]
Message-ID: <YkdjhGtMwnbJcz+P@iweiny-desk3> (raw)
In-Reply-To: <20220401183513.26222-1-fmdefrancesco@gmail.com>
On Fri, Apr 01, 2022 at 08:35:13PM +0200, Fabio M. De Francesco wrote:
> In function rtw_free_netdev() there are two "goto" jumps to a no-op exit
> label called "RETURN". Remove the label and return in line.
Thanks for the patch! However, A good commit message lists the why and what of
a change. I don't see a why for this commit?
FWIW (For what it's worth) I know of a couple of good reasons for this change
but you should get in the habit of putting that in the commit message. Even
for obvious things like this.
Anyway, I think this patch can stand on it's own with an updated commit
message. However, see below...
>
> Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
> ---
> drivers/staging/r8188eu/os_dep/osdep_service.c | 7 ++-----
> 1 file changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/staging/r8188eu/os_dep/osdep_service.c b/drivers/staging/r8188eu/os_dep/osdep_service.c
> index 7a6fcc96081a..d680bfba7f5d 100644
> --- a/drivers/staging/r8188eu/os_dep/osdep_service.c
> +++ b/drivers/staging/r8188eu/os_dep/osdep_service.c
> @@ -117,18 +117,15 @@ void rtw_free_netdev(struct net_device *netdev)
> struct rtw_netdev_priv_indicator *pnpi;
>
> if (!netdev)
> - goto RETURN;
> + return;
>
> pnpi = netdev_priv(netdev);
>
> if (!pnpi->priv)
> - goto RETURN;
> + return;
This does not look right. If netdev is not NULL why does this function skip
free_netdev()?
Fabio could you follow up with Larry and/or Phillip and see why the code does
this? To me it looks like a potential bug.
Thanks!
Ira
>
> vfree(pnpi->priv);
> free_netdev(netdev);
> -
> -RETURN:
> - return;
> }
>
> int rtw_change_ifname(struct adapter *padapter, const char *ifname)
> --
> 2.34.1
>
next prev parent reply other threads:[~2022-04-01 20:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-01 18:35 [PATCH] staging: r8188eu: Remove goto to no-op exit label Fabio M. De Francesco
2022-04-01 20:41 ` Ira Weiny [this message]
2022-04-02 10:13 ` Fabio M. De Francesco
2022-04-02 11:45 ` Martin Kaiser
2022-04-02 13:22 ` Fabio M. De Francesco
2022-04-04 9:59 ` Dan Carpenter
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