3.19.8-ckt16 -stable review patch.  If anyone has any objections, please let me 
know.

---8<------------------------------------------------------------

From: Rasmus Villemoes <li...@rasmusvillemoes.dk>

commit ed3f9fd1e865975ceefdb2a43b453e090b1fd787 upstream.

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

Signed-off-by: Rasmus Villemoes <li...@rasmusvillemoes.dk>
Fixes: f899fc64cda8 ("drm/i915: use GMBUS to manage i2c links")
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
Link: 
http://patchwork.freedesktop.org/patch/msgid/1455048677-19882-3-git-send-email-li...@rasmusvillemoes.dk
(cherry picked from commit 2417c8c03f508841b85bf61acc91836b7b0e2560)
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
[ luis: backported to 3.16:
  - use 'i' instead of 'pin'
  - adjusted context ]
Signed-off-by: Luis Henriques <luis.henriq...@canonical.com>

Signed-off-by: Kamal Mostafa <ka...@canonical.com>
---
 drivers/gpu/drm/i915/intel_i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index ae62800..0b885d0 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -626,7 +626,7 @@ int intel_setup_gmbus(struct drm_device *dev)
        return 0;
 
 err:
-       while (--i) {
+       while (i--) {
                struct intel_gmbus *bus = &dev_priv->gmbus[i];
                i2c_del_adapter(&bus->adapter);
        }
-- 
2.7.0

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