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authorVille Syrjälä <[email protected]>2018-05-08 16:39:40 +0530
committerMaarten Lankhorst <[email protected]>2018-05-11 09:04:25 +0200
commitbfe2e2c9564dd8e7c0109a7b1cc1bf61fbbedf95 (patch)
tree3db685550af0eed9de8db038fe6964e8b0f99a43
parenta9c266c27ee568e3028b804a447b1fea58209618 (diff)
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 <[email protected]> Cc: "Lin, Jia" <[email protected]> Cc: Akashdeep Sharma <[email protected]> Cc: Jim Bride <[email protected]> Cc: Jose Abreu <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Emil Velikov <[email protected]> Cc: Thierry Reding <[email protected]> Cc: Hans Verkuil <[email protected]> Cc: [email protected] Signed-off-by: Ville Syrjälä <[email protected]> Reviewed-by: Jose Abreu <[email protected]> Signed-off-by: Maarten Lankhorst <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
-rw-r--r--drivers/video/hdmi.c3
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;