linux-kernel - [001/139] drm/edid: allow certain bogus edids to hit a fixup path rather than fail

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Message-Id: <20100422195405.032851075@kvm.kroah.org>
Date:	Thu, 22 Apr 2010 12:52:58 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Ben Skeggs <bskeggs@...hat.com>,
	Dave Airlie <airlied@...hat.com>
Subject: [001/139] drm/edid: allow certain bogus edids to hit a fixup path rather than fail

2.6.33-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Ben Skeggs <bskeggs@...hat.com>

commit 44fef22416886a04d432043f741a6faf2c6ffefd upstream.

Signed-off-by: Ben Skeggs <bskeggs@...hat.com>
Signed-off-by: Dave Airlie <airlied@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/gpu/drm/drm_edid.c |    9 ---------
 1 file changed, 9 deletions(-)

--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -707,15 +707,6 @@ static struct drm_display_mode *drm_mode
 	mode->vsync_end = mode->vsync_start + vsync_pulse_width;
 	mode->vtotal = mode->vdisplay + vblank;
 
-	/* perform the basic check for the detailed timing */
-	if (mode->hsync_end > mode->htotal ||
-		mode->vsync_end > mode->vtotal) {
-		drm_mode_destroy(dev, mode);
-		DRM_DEBUG_KMS("Incorrect detailed timing. "
-				"Sync is beyond the blank.\n");
-		return NULL;
-	}
-
 	/* Some EDIDs have bogus h/vtotal values */
 	if (mode->hsync_end > mode->htotal)
 		mode->htotal = mode->hsync_end + 1;


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