linux-kernel - Re: [PATCH v2] sunvdc: Balance device refcount in vdc_port_mpgroup

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Message-Id: <175320015081.186214.5828107139805643955.b4-ty@kernel.dk>
Date: Tue, 22 Jul 2025 10:02:30 -0600
From: Jens Axboe <axboe@...nel.dk>
To: Jim.Quigley@...cle.com, davem@...emloft.net, sln@...main.com, 
 alexandre.chartre@...cle.com, aaron.young@...cle.com, 
 Ma Ke <make24@...as.ac.cn>
Cc: akpm@...ux-foundation.org, linux-block@...r.kernel.org, 
 linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH v2] sunvdc: Balance device refcount in
 vdc_port_mpgroup_check


On Sat, 19 Jul 2025 15:58:56 +0800, Ma Ke wrote:
> Using device_find_child() to locate a probed virtual-device-port node
> causes a device refcount imbalance, as device_find_child() internally
> calls get_device() to increment the device’s reference count before
> returning its pointer. vdc_port_mpgroup_check() directly returns true
> upon finding a matching device without releasing the reference via
> put_device(). We should call put_device() to decrement refcount.
> 
> [...]

Applied, thanks!

[1/1] sunvdc: Balance device refcount in vdc_port_mpgroup_check
      commit: 63ce53724637e2e7ba51fe3a4f78351715049905

Best regards,
-- 
Jens Axboe