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Date: Mon, 3 Aug 2015 10:19:12 +0200 From: Linus Walleij <linus.walleij@...aro.org> To: Ludovic Desroches <ludovic.desroches@...el.com> Cc: "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>, Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>, davidcdueck@...glemail.com, Alexandre Belloni <alexandre.belloni@...e-electrons.com>, Nicolas Ferre <nicolas.ferre@...el.com>, Boris Brezillon <boris.brezillon@...e-electrons.com>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [RESEND PATCH] pinctrl: at91: fix null pointer dereference On Tue, Jul 28, 2015 at 9:48 AM, Ludovic Desroches <ludovic.desroches@...el.com> wrote: > From: David Dueck <davidcdueck@...glemail.com> > > Not all gpio banks are necessarily enabled, in the current code this can > lead to null pointer dereferences. (...) > > Signed-off-by: David Dueck <davidcdueck@...glemail.com> > Acked-by: Ludovic Desroches <ludovic.desroches@...el.com> > Acked-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com> > CC: Nicolas Ferre <nicolas.ferre@...el.com> > CC: Boris Brezillon <boris.brezillon@...e-electrons.com> > CC: linux-arm-kernel@...ts.infradead.org > CC: linux-kernel@...r.kernel.org > --- > > This patch fixes a oops in the kernel because of a NULL pointer in a table. > Having a NULL pointer in this table is the normal behavior if a PIO controller > is not enabled. So this fix is not a quick and dirty hack, it's usual to skip > an entry from a table if it is not filled. This v2 version applied for fixes with v3.18+ stable tag. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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