linux-kernel - Re: [PATCH] spi: fix counting in spi-loopback-test code

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Message-ID: <CAMuHMdUT500KRLsnxf_PzfU3sSxVACES-NZxENRcX+x_NxPeaQ@mail.gmail.com>
Date:	Fri, 15 Jan 2016 12:24:16 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Mark Brown <broonie@...nel.org>,
	Martin Sperl <kernel@...tin.sperl.org>,
	linux-spi <linux-spi@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] spi: fix counting in spi-loopback-test code

On Wed, Jan 13, 2016 at 9:51 PM, Arnd Bergmann <arnd@...db.de> wrote:
> These variables are always used uninitialized:
>
> drivers/spi/spi-loopback-test.c: In function 'spi_test_run_iter':
> drivers/spi/spi-loopback-test.c:768:17: warning: 'rx_count' may be used uninitialized in this function [-Wmaybe-uninitialized]
> drivers/spi/spi-loopback-test.c:762:17: warning: 'tx_count' may be used uninitialized in this function [-Wmaybe-uninitialized]
>
> Adding an explicit initialization seems to be the only
> workable solution here, to make the code behave correctly
> and build without warning.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Fixes: 84e0c4e5e2c4 ("spi: add loopback test driver to allow for spi_master regression tests")

Just noticed the same, so
Acked-by: Geert Uytterhoeven <geert@...ux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds