3.2.79-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
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 <linux@xxxxxxxxxxxxxxxxxx>
Fixes: f899fc64cda8 ("drm/i915: use GMBUS to manage i2c links")
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Link: http://patchwork.freedesktop.org/patch/msgid/1455048677-19882-3-git-send-email-linux@xxxxxxxxxxxxxxxxxx
(cherry picked from commit 2417c8c03f508841b85bf61acc91836b7b0e2560)
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
[bwh: Backported to 3.2: index variable is i, not pin]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_i2c.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -410,7 +410,7 @@ int intel_setup_gmbus(struct drm_device
return 0;
err:
- while (--i) {
+ while (i--) {
struct intel_gmbus *bus = &dev_priv->gmbus[i];
i2c_del_adapter(&bus->adapter);
}
--
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