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

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Message-ID: <20230109212413.mcypwhpmtsj3rgj3@viti.kaiser.cx>
Date:   Mon, 9 Jan 2023 22:24:13 +0100
From:   Martin Kaiser <martin@...ser.cx>
To:     Pavel Skripkin <paskripkin@...il.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        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 Pavel,

Thus wrote Pavel Skripkin (paskripkin@...il.com):

> 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.

> 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.

your're right. It makes sense to relay the return value to _netdev_open.
We'd have to update/remove the intf_start pointer and usb_intf_start.

I'll resend the series without this patch and submit new patches for
relaying the error code.

Thanks & best regards,

   Martin