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| author |   Ville Syrjälä <ville.syrjala@linux.intel.com> | 2018-05-08 16:39:40 +0530 |
|---|---|---|
| committer |   Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2018-05-11 09:04:25 +0200 |
| commit | bfe2e2c9564dd8e7c0109a7b1cc1bf61fbbedf95 (patch) | |
| tree | 3db685550af0eed9de8db038fe6964e8b0f99a43 /drivers/video/hdmi.c | |
| parent | drm/edid: Don't send bogus aspect ratios in AVI infoframes (diff) | |
| download | linux-dev-bfe2e2c9564dd8e7c0109a7b1cc1bf61fbbedf95.tar.xz linux-dev-bfe2e2c9564dd8e7c0109a7b1cc1bf61fbbedf95.zip | |
video/hdmi: Reject illegal picture aspect ratios
AVI infoframe can only carry none, 4:3, or 16:9 picture aspect
ratios. Return an error if the user asked for something different.
Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: "Lin, Jia" <lin.a.jia@intel.com>
Cc: Akashdeep Sharma <akashdeep.sharma@intel.com>
Cc: Jim Bride <jim.bride@linux.intel.com>
Cc: Jose Abreu <Jose.Abreu@synopsys.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: linux-media@vger.kernel.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1525777785-9740-6-git-send-email-ankit.k.nautiyal@intel.com
Diffstat (limited to 'drivers/video/hdmi.c')
| -rw-r--r-- | drivers/video/hdmi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/video/hdmi.c b/drivers/video/hdmi.c index 111a0ab6280a..38716eb50408 100644 --- a/drivers/video/hdmi.c +++ b/drivers/video/hdmi.c @@ -93,6 +93,9 @@ ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, void *buffer, if (size < length) return -ENOSPC; + if (frame->picture_aspect > HDMI_PICTURE_ASPECT_16_9) + return -EINVAL; + memset(buffer, 0, size); ptr[0] = frame->type; |