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Message-Id: <20210512144854.498660821@linuxfoundation.org>
Date:   Wed, 12 May 2021 16:49:21 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.12 515/677] rtw88: Fix an error code in rtw_debugfs_set_rsvd_page()

From: Dan Carpenter <dan.carpenter@...cle.com>

[ Upstream commit c9eaee0c2ec6b1002044fb698cdfb5d9ef4ed28c ]

The sscanf() function returns the number of matches (0 or 1 in this
case).  It doesn't return error codes.  We should return -EINVAL if the
string is invalid

Fixes: c376c1fc87b7 ("rtw88: add h2c command in debugfs")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Kalle Valo <kvalo@...eaurora.org>
Link: https://lore.kernel.org/r/YE8nmatMDBDDWkjq@mwanda
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/wireless/realtek/rtw88/debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtw88/debug.c b/drivers/net/wireless/realtek/rtw88/debug.c
index 948cb79050ea..e7d51ac9b689 100644
--- a/drivers/net/wireless/realtek/rtw88/debug.c
+++ b/drivers/net/wireless/realtek/rtw88/debug.c
@@ -270,7 +270,7 @@ static ssize_t rtw_debugfs_set_rsvd_page(struct file *filp,
 
 	if (num != 2) {
 		rtw_warn(rtwdev, "invalid arguments\n");
-		return num;
+		return -EINVAL;
 	}
 
 	debugfs_priv->rsvd_page.page_offset = offset;
-- 
2.30.2



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