linux-kernel - Re: [PATCH RESEND] usb: renesas_usbhs: Add error handling for usbhsf_fifo

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Message-ID: <2025041410-module-egotistic-6857@gregkh>
Date: Mon, 14 Apr 2025 09:38:25 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: Wentao Liang <vulab@...as.ac.cn>
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Subject: Re: [PATCH RESEND] usb: renesas_usbhs: Add error handling for
 usbhsf_fifo_select()

On Mon, Apr 14, 2025 at 03:25:01PM +0800, Wentao Liang wrote:
> In usbhsf_dcp_data_stage_prepare_pop(), the return value of
> usbhsf_fifo_select() needs to be checked. A proper implementation
> can be found in usbhsf_dma_try_pop_with_rx_irq().
> 
> Add an error check and jump to PIO pop when FIFO selection fails.
> 
> Fixes: 9e74d601de8a ("usb: gadget: renesas_usbhs: add data/status stage handler")
> Cc: stable@...r.kernel.org # v3.2+
> Signed-off-by: Wentao Liang <vulab@...as.ac.cn>
> ---
>  drivers/usb/renesas_usbhs/fifo.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)

Why is this RESEND?  What happened to the first one?

thanks,

greg k-h