~hc/RK356X_SDK_RELEASE.git

..	..	@@ -422,6 +422,10 @@
422	422	if (ret == 0)
423	423	ret = 2;
424	424	} else {
	425	+ if (msg[0].len < 2) {
	426	+ ret = -EOPNOTSUPP;
	427	+ goto unlock;
	428	+ }
425	429	/* write one or more registers */
426	430	reg = msg[0].buf[0];
427	431	addr = msg[0].addr;
..	..	@@ -431,6 +435,7 @@
431	435	ret = 1;
432	436	}
433	437
	438	+unlock:
434	439	mutex_unlock(&d->i2c_mutex);
435	440	return ret;
436	441	}