From: Dan Carpenter <error27@gmail.com>
To: Chris Wilson <chris@chris-wilson.co.uk>
Cc: intel-gfx@lists.freedesktop.org, kernel-janitors@vger.kernel.org,
dri-devel@lists.freedesktop.org
Subject: [patch] i915: signedness bug in check_overlay_src()
Date: Wed, 27 Oct 2010 21:17:25 +0000 [thread overview]
Message-ID: <20101027211724.GI6062@bicker> (raw)
"depth" should be signed in case packed_depth_bytes() returns -EINVAL.
This probably doesn't make a difference at runtime. In the original
code we would return -EINVAL later if (rec->offset_Y % 4294967274) is
non-zero.
Signed-off-by: Dan Carpenter <error27@gmail.com>
diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index afb96d2..02ff0a4 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -946,7 +946,9 @@ static int check_overlay_src(struct drm_device *dev,
{
int uv_hscale = uv_hsubsampling(rec->flags);
int uv_vscale = uv_vsubsampling(rec->flags);
- u32 stride_mask, depth, tmp;
+ u32 stride_mask;
+ int depth;
+ u32 tmp;
/* check src dimensions */
if (IS_845G(dev) || IS_I830(dev)) {
WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <error27@gmail.com>
To: Chris Wilson <chris@chris-wilson.co.uk>
Cc: intel-gfx@lists.freedesktop.org, kernel-janitors@vger.kernel.org,
dri-devel@lists.freedesktop.org
Subject: [patch] i915: signedness bug in check_overlay_src()
Date: Wed, 27 Oct 2010 23:17:25 +0200 [thread overview]
Message-ID: <20101027211724.GI6062@bicker> (raw)
"depth" should be signed in case packed_depth_bytes() returns -EINVAL.
This probably doesn't make a difference at runtime. In the original
code we would return -EINVAL later if (rec->offset_Y % 4294967274) is
non-zero.
Signed-off-by: Dan Carpenter <error27@gmail.com>
diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index afb96d2..02ff0a4 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -946,7 +946,9 @@ static int check_overlay_src(struct drm_device *dev,
{
int uv_hscale = uv_hsubsampling(rec->flags);
int uv_vscale = uv_vsubsampling(rec->flags);
- u32 stride_mask, depth, tmp;
+ u32 stride_mask;
+ int depth;
+ u32 tmp;
/* check src dimensions */
if (IS_845G(dev) || IS_I830(dev)) {
next reply other threads:[~2010-10-27 21:17 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-27 21:17 Dan Carpenter [this message]
2010-10-27 21:17 ` [patch] i915: signedness bug in check_overlay_src() Dan Carpenter
2010-10-27 21:58 ` Chris Wilson
2010-10-27 21:58 ` Chris Wilson
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