From mboxrd@z Thu Jan  1 00:00:00 1970
From: Wolfram Sang <wsa@the-dreams.de>
Subject: Re: [PATCH v2 4/4] gpio: pca953x: fix an incorrect lockdep warning
Date: Sat, 24 Sep 2016 11:15:06 +0200
Message-ID: <20160924091506.GE1434@katana>
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Cc: Linus Walleij <linus.walleij@linaro.org>, Alexandre Courbot <gnurou@gmail.com>, Andy Shevchenko <andriy.shevchenko@linux.intel.com>, Vignesh R <vigneshr@ti.com>, Yong Li <yong.b.li@intel.com>, Geert Uytterhoeven <geert+renesas@glider.be>, Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, Peter Rosin <peda@axentia.se>, linux-i2c <linux-i2c@vger.kernel.org>, linux-gpio <linux-gpio@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>
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>  drivers/gpio/gpio-pca953x.c | 2 ++
>  1 file changed, 2 insertions(+)

FYI, my code checkers found this in this driver:

    SMATCH
drivers/gpio/gpio-pca953x.c:562 pca953x_irq_pending() error: buffer overflow 'cur_stat' 5 <= 8191
drivers/gpio/gpio-pca953x.c:573 pca953x_irq_pending() warn: buffer overflow 'old_stat' 5 <= 8191

Didn't check further. I fixed a sparse warning, though.


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