linux-kernel - Re: [PATCH 06/13] staging: r8188eu: make rtl8188eu_inirp

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Date:   Sun, 8 Jan 2023 22:57:39 +0300
From:   Pavel Skripkin <paskripkin@...il.com>
To:     Martin Kaiser <martin@...ser.cx>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Larry Finger <Larry.Finger@...inger.net>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Michael Straube <straube.linux@...il.com>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 06/13] staging: r8188eu: make rtl8188eu_inirp_init a void
 function

Hi Martin,

Martin Kaiser <martin@...ser.cx> says:
> rtl8188eu_inirp_init's return value is not checked by its caller. Make
> rtl8188eu_inirp_init a void function.
> 
> Signed-off-by: Martin Kaiser <martin@...ser.cx>
> ---
>   drivers/staging/r8188eu/hal/usb_halinit.c  | 14 +++-----------
>   drivers/staging/r8188eu/include/hal_intf.h |  2 +-
>   2 files changed, 4 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/staging/r8188eu/hal/usb_halinit.c b/drivers/staging/r8188eu/hal/usb_halinit.c
> index d28b4dc2a767..afa24a59fbb3 100644
> --- a/drivers/staging/r8188eu/hal/usb_halinit.c
> +++ b/drivers/staging/r8188eu/hal/usb_halinit.c
> @@ -851,29 +851,21 @@ u32 rtl8188eu_hal_deinit(struct adapter *Adapter)
>   	return _SUCCESS;
>    }
>   
> -unsigned int rtl8188eu_inirp_init(struct adapter *Adapter)
> +void rtl8188eu_inirp_init(struct adapter *Adapter)

Hm, shouldn't we actually check return value on caller side?

This thing is called from netdev_open and issues urbs to read data from 
the device. So let's imagine that we fail on 1st iteration (for some 
reason): netdev_open() says all is OK, but driver does not communicate 
with the device.


Maybe these urbs are not that important, tho..


With regards,
Pavel Skripkin