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Message-ID: <1369823168-5396-6-git-send-email-amerilainen@nvidia.com> Date: Wed, 29 May 2013 13:26:06 +0300 From: Arto Merilainen <amerilainen@...dia.com> To: <thierry.reding@...il.com>, <airlied@...ux.ie>, <linux-tegra@...r.kernel.org>, <dri-devel@...ts.freedesktop.org> CC: <tbergstrom@...dia.com>, <linux-kernel@...r.kernel.org>, Arto Merilainen <amerilainen@...dia.com> Subject: [PATCHv2 5/7] gpu: host1x: Fix memory access in syncpt request This patch fixes a bad memory access in syncpoint request code. If no syncpoints were available, the code accessed unreserved memory area causing unexpected behaviour. Signed-off-by: Arto Merilainen <amerilainen@...dia.com> --- drivers/gpu/host1x/syncpt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/host1x/syncpt.c b/drivers/gpu/host1x/syncpt.c index 4b49345..2b03f1b 100644 --- a/drivers/gpu/host1x/syncpt.c +++ b/drivers/gpu/host1x/syncpt.c @@ -40,7 +40,8 @@ static struct host1x_syncpt *_host1x_syncpt_alloc(struct host1x *host, for (i = 0; i < host->info->nb_pts && sp->name; i++, sp++) ; - if (sp->dev) + + if (i >= host->info->nb_pts) return NULL; name = kasprintf(GFP_KERNEL, "%02d-%s", sp->id, -- 1.8.1.5 -- 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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