linux-kernel - Re: [PATCH 1/2] usb: tegra: Fix allocation for the FPCI context

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Message-ID: <20200714091955.GF141356@ulmo>
Date:   Tue, 14 Jul 2020 11:19:55 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Jon Hunter <jonathanh@...dia.com>
Cc:     Mathias Nyman <mathias.nyman@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH 1/2] usb: tegra: Fix allocation for the FPCI context

On Sun, Jul 12, 2020 at 11:28:36AM +0100, Jon Hunter wrote:
> Commit 5c4e8d3781bc ("usb: host: xhci-tegra: Add support for XUSB
> context save/restore") is using the IPFS 'num_offsets' value when
> allocating memory for FPCI context instead of the FPCI 'num_offsets'.
> We have not observed any specific issues because of this, but could
> cause too much memory or too little memory to be allocated. Fix this
> by using the FPCI 'num_offsets' for allocating the FPCI memory for
> storing the FPCI state.
> 
> Cc: stable@...r.kernel.org
> 
> Fixes: 5c4e8d3781bc ("usb: host: xhci-tegra: Add support for XUSB context save/restore")
> 
> Signed-off-by: Jon Hunter <jonathanh@...dia.com>
> ---
>  drivers/usb/host/xhci-tegra.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Good catch!

Acked-by: Thierry Reding <treding@...dia.com>

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