diff --git a/drivers/net/wireless/realtek/rtw89/debug.c b/drivers/net/wireless/realtek/rtw89/debug.c
index 50701c55ed60..ec0af903961f 100644
--- a/drivers/net/wireless/realtek/rtw89/debug.c
+++ b/drivers/net/wireless/realtek/rtw89/debug.c
@@ -2130,17 +2130,18 @@ static ssize_t rtw89_debug_priv_send_h2c_set(struct file *filp,
 	struct rtw89_debugfs_priv *debugfs_priv = filp->private_data;
 	struct rtw89_dev *rtwdev = debugfs_priv->rtwdev;
 	u8 *h2c;
+	int ret;
 	u16 h2c_len = count / 2;
 
 	h2c = rtw89_hex2bin_user(rtwdev, user_buf, count);
 	if (IS_ERR(h2c))
 		return -EFAULT;
 
-	rtw89_fw_h2c_raw(rtwdev, h2c, h2c_len);
+	ret = rtw89_fw_h2c_raw(rtwdev, h2c, h2c_len);
 
 	kfree(h2c);
 
-	return count;
+	return ret ? ret : count;
 }
 
 static int