drm/edid: Skip empty CVT codepoints (69da3015) · Commits · 戴 / test

drivers/gpu/drm/drm_edid.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -911,11 +911,15 @@ static int drm_cvt_modes(struct drm_connector *connector,
		struct drm_device *dev = connector->dev;
		struct cvt_timing *cvt;
		const int rates[] = { 60, 85, 75, 60, 50 };
		const u8 empty[3] = { 0, 0, 0 };

		for (i = 0; i < 4; i++) {
		int uninitialized_var(width), height;
		cvt = &(timing->data.other_data.data.cvt[i]);

		if (!memcmp(cvt->code, empty, 3))
		continue;

		height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 8) + 1) * 2;
		switch (cvt->code[1] & 0xc0) {
		case 0x00: