From: Arto Merilainen <amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
To: thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org,
airlied-cv59FeDIM0c@public.gmane.org,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: tbergstrom-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org,
dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Arto Merilainen
<amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Subject: [PATCH 3/6] gpu: host1x: Fix memory access in syncpt request
Date: Fri, 17 May 2013 14:49:45 +0300 [thread overview]
Message-ID: <1368791388-31441-4-git-send-email-amerilainen@nvidia.com> (raw)
In-Reply-To: <1368791388-31441-1-git-send-email-amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
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-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
drivers/gpu/host1x/syncpt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/host1x/syncpt.c b/drivers/gpu/host1x/syncpt.c
index 5bf5366..6b7ee88 100644
--- a/drivers/gpu/host1x/syncpt.c
+++ b/drivers/gpu/host1x/syncpt.c
@@ -40,7 +40,7 @@ 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,
--
1.7.9.5
next prev parent reply other threads:[~2013-05-17 11:49 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-17 11:49 [PATCH 0/6] Miscellaneous fixes to host1x Arto Merilainen
2013-05-17 11:49 ` [PATCH 2/6] gpu: host1x: Fix syncpoint wait return value Arto Merilainen
[not found] ` <1368791388-31441-3-git-send-email-amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-26 10:12 ` Thierry Reding
2013-05-27 6:55 ` Arto Merilainen
[not found] ` <51A30372.6080907-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-28 10:39 ` Thierry Reding
2013-05-28 19:12 ` Keith Packard
[not found] ` <86y5ay6hrn.fsf-07MG1JmyPZaz9DMzp4kqnw@public.gmane.org>
2013-06-11 10:48 ` Thierry Reding
2013-06-11 11:00 ` Daniel Vetter
2013-06-11 11:43 ` Terje Bergström
2013-06-11 12:09 ` Daniel Vetter
[not found] ` <CAKMK7uGRW4uqsSaDEehTZwknZH+mNEgyKB6-4TgfgUOaTOcoLA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-06-11 18:19 ` Thierry Reding
2013-06-12 10:28 ` Terje Bergström
2013-06-12 11:00 ` Daniel Vetter
[not found] ` <1368791388-31441-1-git-send-email-amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-17 11:49 ` [PATCH 1/6] gpu: host1x: Fixes to host1x firewall Arto Merilainen
[not found] ` <1368791388-31441-2-git-send-email-amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-26 10:02 ` Thierry Reding
2013-05-27 6:22 ` Arto Merilainen
2013-05-17 11:49 ` Arto Merilainen [this message]
[not found] ` <1368791388-31441-4-git-send-email-amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-26 10:15 ` [PATCH 3/6] gpu: host1x: Fix memory access in syncpt request Thierry Reding
2013-05-27 6:56 ` Arto Merilainen
2013-05-17 11:49 ` [PATCH 4/6] gpu: host1x: Fix client_managed type Arto Merilainen
[not found] ` <1368791388-31441-5-git-send-email-amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-26 10:17 ` Thierry Reding
2013-05-17 11:49 ` [PATCH 5/6] gpu: host1x: Rework CPU syncpoint increment Arto Merilainen
[not found] ` <1368791388-31441-6-git-send-email-amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-26 10:24 ` Thierry Reding
2013-05-17 11:49 ` [PATCH 6/6] drm/tegra: Fix syncpoint increment return code Arto Merilainen
[not found] ` <1368791388-31441-7-git-send-email-amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-26 10:26 ` Thierry Reding
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