1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index eb5827110d8f..49fdf09f9919 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -438,7 +438,9 @@ static bool
 gmbus_is_index_read(struct i2c_msg *msgs, int i, int num)
 {
         return (i + 1 < num &&
-                !(msgs[i].flags & I2C_M_RD) && msgs[i].len <= 2 &&
+                msgs[i].addr == msgs[i + 1].addr &&
+                !(msgs[i].flags & I2C_M_RD) &&
+                (msgs[i].len == 1 || msgs[i].len == 2) &&
                 (msgs[i + 1].flags & I2C_M_RD));
 }