diff --git a/drivers/video/fbdev/msm/mdss_mdp_pp.c b/drivers/video/fbdev/msm/mdss_mdp_pp.c
index 837582562f45..0ec60c280292 100644
--- a/drivers/video/fbdev/msm/mdss_mdp_pp.c
+++ b/drivers/video/fbdev/msm/mdss_mdp_pp.c
@@ -4890,7 +4890,7 @@ int mdss_mdp_ad_input(struct msm_fb_data_type *mfd,
 	mutex_lock(&ad->lock);
 	if ((!PP_AD_STATE_IS_INITCFG(ad->state) &&
 			!PP_AD_STS_IS_DIRTY(ad->sts)) &&
-			!input->mode == MDSS_AD_MODE_CALIB) {
+			(input->mode != MDSS_AD_MODE_CALIB)) {
 		pr_warn("AD not initialized or configured.\n");
 		ret = -EPERM;
 		goto error;