linux-kernel - Re: [PATCH v2 0/8] NFC: fix device allocation and nfcmrvl crashes

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Message-ID: <20170426224238.GB3717@zurbaran.ger.intel.com>
Date:   Thu, 27 Apr 2017 00:42:38 +0200
From:   Samuel Ortiz <sameo@...ux.intel.com>
To:     Johan Hovold <johan@...nel.org>
Cc:     linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/8] NFC: fix device allocation and nfcmrvl crashes

Hi Johan,

On Thu, Mar 30, 2017 at 12:15:34PM +0200, Johan Hovold wrote:
> This started out with the observation that the nfcmrvl_uart driver
> unconditionally dereferenced the tty class device despite the fact that
> not every tty has an associated struct device (Unix98 ptys). Some
> further changes were needed in the common nfcmrvl code to fully address
> this, some of which also incidentally fixed a few related bugs (e.g.
> resource leaks in error paths).
> 
> While fixing this I stumbled over a regression in NFC core that lead to
> broken registration error paths and misnamed workqueues.
> 
> Note that this has only been tested by configuring the n_hci line
> discipline for different ttys without any actual NFC hardware connected.
> 
> Johan
> 
> 
> Changes in v2
>  - fix typo in commit message (1/8)
>  - release reset gpio in error paths (3/8)
>  - fix description of patch impact (3/8)
>  - allow gpio 0 to be used for reset signalling (8/8, new)
> 
> 
> Johan Hovold (8):
>   NFC: fix broken device allocation
>   NFC: nfcmrvl_uart: add missing tty-device sanity check
>   NFC: nfcmrvl: do not use device-managed resources
>   NFC: nfcmrvl: use nfc-device for firmware download
>   NFC: nfcmrvl: fix firmware-management initialisation
>   NFC: nfcmrvl_uart: fix device-node leak during probe
>   NFC: nfcmrvl_usb: use interface as phy device
>   NFC: nfcmrvl: allow gpio 0 for reset signalling
Applied, thanks.

Cheers,
Samuel.