From: Dan Carpenter <dan.carpenter@oracle.com>
To: David Airlie <airlied@linux.ie>
Cc: kernel-janitors@vger.kernel.org, Ben Skeggs <bskeggs@redhat.com>,
dri-devel@lists.freedesktop.org,
Paul Menzel <paulepanter@users.sourceforge.net>
Subject: [patch v2] drm/nouveau/disp: sizeof() wrong pointer
Date: Wed, 23 Jan 2013 08:27:56 +0000 [thread overview]
Message-ID: <20130123082756.GA22945@elgon.mountain> (raw)
In-Reply-To: <1358847745.17068.7.camel@mattotaupa>
"data" is a void pointer and "args" is "data" after we have casted it to
a struct. We care about the size of the struct here. Btw,
sizeof(*data) is 1.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
v2: tweaked the commit message
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
index ca1a7d7..eb9c489 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
@@ -335,7 +335,7 @@ nv50_disp_sync_ctor(struct nouveau_object *parent,
struct nv50_disp_dmac *dmac;
int ret;
- if (size < sizeof(*data) || args->head > 1)
+ if (size < sizeof(*args) || args->head > 1)
return -EINVAL;
ret = nv50_disp_dmac_create_(parent, engine, oclass, args->pushbuf,
@@ -374,7 +374,7 @@ nv50_disp_ovly_ctor(struct nouveau_object *parent,
struct nv50_disp_dmac *dmac;
int ret;
- if (size < sizeof(*data) || args->head > 1)
+ if (size < sizeof(*args) || args->head > 1)
return -EINVAL;
ret = nv50_disp_dmac_create_(parent, engine, oclass, args->pushbuf,
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
index 9e38ebf..f28725a 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
@@ -230,7 +230,7 @@ nvd0_disp_sync_ctor(struct nouveau_object *parent,
struct nv50_disp_dmac *dmac;
int ret;
- if (size < sizeof(*data) || args->head >= priv->head.nr)
+ if (size < sizeof(*args) || args->head >= priv->head.nr)
return -EINVAL;
ret = nv50_disp_dmac_create_(parent, engine, oclass, args->pushbuf,
@@ -270,7 +270,7 @@ nvd0_disp_ovly_ctor(struct nouveau_object *parent,
struct nv50_disp_dmac *dmac;
int ret;
- if (size < sizeof(*data) || args->head >= priv->head.nr)
+ if (size < sizeof(*args) || args->head >= priv->head.nr)
return -EINVAL;
ret = nv50_disp_dmac_create_(parent, engine, oclass, args->pushbuf,
WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: David Airlie <airlied@linux.ie>
Cc: kernel-janitors@vger.kernel.org, Ben Skeggs <bskeggs@redhat.com>,
dri-devel@lists.freedesktop.org,
Paul Menzel <paulepanter@users.sourceforge.net>
Subject: [patch v2] drm/nouveau/disp: sizeof() wrong pointer
Date: Wed, 23 Jan 2013 11:27:56 +0300 [thread overview]
Message-ID: <20130123082756.GA22945@elgon.mountain> (raw)
In-Reply-To: <1358847745.17068.7.camel@mattotaupa>
"data" is a void pointer and "args" is "data" after we have casted it to
a struct. We care about the size of the struct here. Btw,
sizeof(*data) is 1.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
v2: tweaked the commit message
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
index ca1a7d7..eb9c489 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
@@ -335,7 +335,7 @@ nv50_disp_sync_ctor(struct nouveau_object *parent,
struct nv50_disp_dmac *dmac;
int ret;
- if (size < sizeof(*data) || args->head > 1)
+ if (size < sizeof(*args) || args->head > 1)
return -EINVAL;
ret = nv50_disp_dmac_create_(parent, engine, oclass, args->pushbuf,
@@ -374,7 +374,7 @@ nv50_disp_ovly_ctor(struct nouveau_object *parent,
struct nv50_disp_dmac *dmac;
int ret;
- if (size < sizeof(*data) || args->head > 1)
+ if (size < sizeof(*args) || args->head > 1)
return -EINVAL;
ret = nv50_disp_dmac_create_(parent, engine, oclass, args->pushbuf,
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
index 9e38ebf..f28725a 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
@@ -230,7 +230,7 @@ nvd0_disp_sync_ctor(struct nouveau_object *parent,
struct nv50_disp_dmac *dmac;
int ret;
- if (size < sizeof(*data) || args->head >= priv->head.nr)
+ if (size < sizeof(*args) || args->head >= priv->head.nr)
return -EINVAL;
ret = nv50_disp_dmac_create_(parent, engine, oclass, args->pushbuf,
@@ -270,7 +270,7 @@ nvd0_disp_ovly_ctor(struct nouveau_object *parent,
struct nv50_disp_dmac *dmac;
int ret;
- if (size < sizeof(*data) || args->head >= priv->head.nr)
+ if (size < sizeof(*args) || args->head >= priv->head.nr)
return -EINVAL;
ret = nv50_disp_dmac_create_(parent, engine, oclass, args->pushbuf,
next prev parent reply other threads:[~2013-01-23 8:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-22 7:20 [patch] drm/nouveau/disp: sizeof() wrong pointer Dan Carpenter
2013-01-22 7:20 ` Dan Carpenter
2013-01-22 9:42 ` Paul Menzel
2013-01-22 9:42 ` Paul Menzel
2013-01-23 8:27 ` Dan Carpenter [this message]
2013-01-23 8:27 ` [patch v2] " Dan Carpenter
2013-01-23 8:38 ` [patch] " Dan Carpenter
2013-01-23 8:38 ` Dan Carpenter
2013-01-23 11:36 ` Bernd Petrovitsch
2013-01-23 11:36 ` Bernd Petrovitsch
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