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video/hdmi: Fix AVI bar unpack

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commit 6039f37dd6 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: 2c676f378e ("[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>
This commit is contained in:
Ville Syrjälä
2019-09-19 16:28:53 +03:00
committed by Chris
parent b1494a67a7
commit 14c0dce890
1 changed files with 4 additions and 4 deletions
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8
drivers/video/hdmi.c
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@@ -1036,12 +1036,12 @@ static int hdmi_avi_infoframe_unpack(struct hdmi_avi_infoframe *frame,
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;