4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: YYS <nickey.yang@xxxxxxxxxxxxxx>
commit 014580ffab654bb83256783a2b185cf6c06dffaa upstream.
mtk_hdmi_setup_vendor_specific_infoframe will return before handle
mtk_hdmi_hw_send_info_frame.Because hdmi_vendor_infoframe_pack
returns the number of bytes packed into the binary buffer or
a negative error code on failure.
So correct it.
Fixes: 8f83f26891e1 ("drm/mediatek: Add HDMI support")
Signed-off-by: Nickey Yang <nickey.yang@xxxxxxxxxxxxxx>
Signed-off-by: CK Hu <ck.hu@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/mediatek/mtk_hdmi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -1061,7 +1061,7 @@ static int mtk_hdmi_setup_vendor_specifi
}
err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer));
- if (err) {
+ if (err < 0) {
dev_err(hdmi->dev, "Failed to pack vendor infoframe: %zd\n",
err);
return err;