[Intel-gfx] [PATCH 1/3] drm/i915: Pass the correct msgs to gmbus_is_index_read()

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

We're supposed to examine msgs[i] and msgs[i+1] to see if they
form a pair suitable for an indexed transfer. But in reality
we're examining msgs[0] and msgs[1]. Fix this.

Cc: stable at vger.kernel.org
Cc: Daniel Kurtz <djkurtz at chromium.org>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: Sean Paul <seanpaul at chromium.org>
Fixes: 56f9eac05489 ("drm/i915/intel_i2c: use INDEX cycles for i2c read transactions")
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.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 eb5827110d8f..165375cbef2f 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -484,7 +484,7 @@ do_gmbus_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs, int num)
 
 	for (; i < num; i += inc) {
 		inc = 1;
-		if (gmbus_is_index_read(msgs, i, num)) {
+		if (gmbus_is_index_read(&msgs[i], i, num)) {
 			ret = gmbus_xfer_index_read(dev_priv, &msgs[i]);
 			inc = 2; /* an index read is two msgs */
 		} else if (msgs[i].flags & I2C_M_RD) {
-- 
2.13.6