diff --git a/drivers/button/button-qcom-pmic.c b/drivers/button/button-qcom-pmic.c
index 34a976d1e6..bad445efa8 100644
--- a/drivers/button/button-qcom-pmic.c
+++ b/drivers/button/button-qcom-pmic.c
@@ -86,7 +86,7 @@ static int qcom_pwrkey_probe(struct udevice *dev)
 	}
 
 	ret = pmic_reg_read(priv->pmic, priv->base + REG_SUBTYPE);
-	if ((ret & 0x7) == 0) {
+	if (ret < 0 || (ret & 0x7) == 0) {
 		printf("%s: unexpected PMCI function subtype %d\n", dev->name, ret);
 		return -ENXIO;
 	}
@@ -133,7 +133,7 @@ static int button_qcom_pmic_bind(struct udevice *parent)
 		} else if (NODE_IS_RESIN(node)) {
 			uc_plat->label = "vol_down";
 		} else {
-			printf("Unknown button node '%s' should be 'pwrkey' or 'resin'\n",
+			debug("Unknown button node '%s' should be 'pwrkey' or 'resin'\n",
 			       ofnode_get_name(node));
 			device_unbind(dev);
 		}