diff --git a/drivers/char/hw_random/imx-rngc.c b/drivers/char/hw_random/imx-rngc.c
index 88db42d30760..48194d1a6076 100644
--- a/drivers/char/hw_random/imx-rngc.c
+++ b/drivers/char/hw_random/imx-rngc.c
@@ -110,8 +110,10 @@ static int imx_rngc_self_test(struct imx_rngc *rngc)
 		return -ETIMEDOUT;
 	}
 
-	if (rngc->err_reg != 0)
+	if (rngc->err_reg != 0) {
+		imx_rngc_irq_mask_clear(rngc);
 		return -EIO;
+	}
 
 	return 0;
 }