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Date:   Fri, 22 May 2020 07:12:22 +0200
From:   Greg Kroah-Hartman <>
To:     Dinghao Liu <>
Cc:, Bin Liu <>,,
Subject: Re: [PATCH] [v2] usb: musb: Fix runtime PM imbalance on error

On Fri, May 22, 2020 at 10:59:02AM +0800, Dinghao Liu wrote:
> When copy_from_user() returns an error code, there
> is a runtime PM usage counter imbalance.
> Fix this by moving copy_from_user() to the beginning
> of this function.
> Signed-off-by: Dinghao Liu <>
> ---
>  drivers/usb/musb/musb_debugfs.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)

What changed from v1?  Always show that below the --- line as the
documentation says to.


greg k-h

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