From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, linux-media@vger.kernel.org,
"Martin Bugge" <marbugge@cisco.com>,
"Hans Verkuil" <hans.verkuil@cisco.com>,
"Thierry Reding" <treding@nvidia.com>,
"Mauro Carvalho Chehab" <mchehab@osg.samsung.com>,
"Ville Syrjälä" <ville.syrjala@linux.intel.com>
Subject: [PATCH 4.19 090/140] video/hdmi: Fix AVI bar unpack
Date: Mon, 16 Dec 2019 18:49:18 +0100 [thread overview]
Message-ID: <20191216174811.201999222@linuxfoundation.org> (raw)
In-Reply-To: <20191216174747.111154704@linuxfoundation.org>
From: Ville Syrjälä <ville.syrjala@linux.intel.com>
commit 6039f37dd6b76641198e290f26b31c475248f567 upstream.
The bar values are little endian, not big endian. The pack
function did it right but the unpack got it wrong. Fix it.
Cc: stable@vger.kernel.org
Cc: linux-media@vger.kernel.org
Cc: Martin Bugge <marbugge@cisco.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Fixes: 2c676f378edb ("[media] hdmi: added unpack and logging functions for InfoFrames")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190919132853.30954-1-ville.syrjala@linux.intel.com
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/video/hdmi.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/video/hdmi.c
+++ b/drivers/video/hdmi.c
@@ -1039,12 +1039,12 @@ static int hdmi_avi_infoframe_unpack(str
if (ptr[0] & 0x10)
frame->active_aspect = ptr[1] & 0xf;
if (ptr[0] & 0x8) {
- frame->top_bar = (ptr[5] << 8) + ptr[6];
- frame->bottom_bar = (ptr[7] << 8) + ptr[8];
+ frame->top_bar = (ptr[6] << 8) | ptr[5];
+ frame->bottom_bar = (ptr[8] << 8) | ptr[7];
}
if (ptr[0] & 0x4) {
- frame->left_bar = (ptr[9] << 8) + ptr[10];
- frame->right_bar = (ptr[11] << 8) + ptr[12];
+ frame->left_bar = (ptr[10] << 8) | ptr[9];
+ frame->right_bar = (ptr[12] << 8) | ptr[11];
}
frame->scan_mode = ptr[0] & 0x3;
parent reply other threads:[~2019-12-16 18:05 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20191216174747.111154704@linuxfoundation.org>]
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