FAILED: patch "[PATCH] drm/i915: fix error path in intel_setup_gmbus()" failed to apply to 3.10-stable tree

The patch below does not apply to the 3.10-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From: Rasmus Villemoes <[email protected]>
Date: Tue, 9 Feb 2016 21:11:13 +0100
Subject: [PATCH] drm/i915: fix error path in intel_setup_gmbus()

This fails to undo the setup for pin==0; moreover, something interesting happens if the setup failed already at pin==0.

index 25254b5c1ac5..deb8282c26d8 100644
@@ -683,7 +683,7 @@ int intel_setup_gmbus(struct drm_device *dev)
 	return 0;
 
 err:
-	while (--pin) {
+	while (pin--) {
 		if (!intel_gmbus_is_valid_pin(dev_priv, pin))
 			continue;