linux-kernel - Re: [PATCH v3 0/3] HID: nvidia-shield: Fix the error handling path of shield

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Date:   Wed, 4 Oct 2023 20:58:31 +0200 (CEST)
From:   Jiri Kosina <jikos@...nel.org>
To:     Rahul Rameshbabu <rrameshbabu@...dia.com>
cc:     Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        kernel-janitors@...r.kernel.org, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/3] HID: nvidia-shield: Fix the error handling path
 of shield_probe()

On Mon, 18 Sep 2023, Rahul Rameshbabu wrote:

> This series fixes some missing clean-up function calls in the error handling of
> the probe.
> 
> Patch 1 and 2 fix some similar issues introduced in 2 different commits (hence 2
> patches)
> 
> Patch 3 is an enhancement that creates a common function for cleaning up
> thunderstrike instances.
> 
> Changes:
> 
>   v1->v2:
>     - Add the LED_RETAIN_AT_SHUTDOWN flag to prevent
>       led_classdev_unregister from trying to set the LED to off before a
>       successful call to hid_hw_start.
>     - Rename err_haptics label to err_ts_create to make the label name more
>       accurate.
>     - Re-order operations in thunderstrike_destroy to be in LIFO order with
>       regards to the operations in thunderstrike_create.
>   v2->v3:
>     - Refactor thunderstrike_destroy to take a thunderstrike instance
>       pointer as a parameter and prevent a variable from being unused
>       in shield_probe.
> 
> Link: https://lore.kernel.org/linux-input/cover.1693070958.git.christophe.jaillet@wanadoo.fr/
> Link: https://lore.kernel.org/linux-input/20230918041345.59859-1-rrameshbabu@nvidia.com/
> 
> Notes from Rahul:
>   - Thank you so much Christophe for these patches.
>   - Sent v2 without accounting for the fact that thunderstrike_destroy in v1
>     makes the thunderstrike instance in shield_probe unused. Tested v3 with W=1.
> 
> Christophe JAILLET (3):
>   HID: nvidia-shield: Fix a missing led_classdev_unregister() in the
>     probe error handling path
>   HID: nvidia-shield: Fix some missing function calls() in the probe
>     error handling path
>   HID: nvidia-shield: Introduce thunderstrike_destroy()

I have applied 1/3 and 2/3 to for-6.6/upstream-fixes and 3/3 to 
for-6.7/nvidia-shield.

Thanks,

-- 
Jiri Kosina
SUSE Labs