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Message-Id: <20210608175932.789923710@linuxfoundation.org>
Date:   Tue,  8 Jun 2021 20:26:56 +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, Hulk Robot <hulkci@...wei.com>,
        Wei Yongjun <weiyongjun1@...wei.com>,
        Stefan Schmidt <stefan@...enfreihafen.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 15/58] ieee802154: fix error return code in ieee802154_llsec_getparams()

From: Wei Yongjun <weiyongjun1@...wei.com>

[ Upstream commit 373e864cf52403b0974c2f23ca8faf9104234555 ]

Fix to return negative error code -ENOBUFS from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 3e9c156e2c21 ("ieee802154: add netlink interfaces for llsec")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
Link: https://lore.kernel.org/r/20210519141614.3040055-1-weiyongjun1@huawei.com
Signed-off-by: Stefan Schmidt <stefan@...enfreihafen.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/ieee802154/nl-mac.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/ieee802154/nl-mac.c b/net/ieee802154/nl-mac.c
index c0930b9fe848..7531cb1665d2 100644
--- a/net/ieee802154/nl-mac.c
+++ b/net/ieee802154/nl-mac.c
@@ -688,8 +688,10 @@ int ieee802154_llsec_getparams(struct sk_buff *skb, struct genl_info *info)
 	    nla_put_u8(msg, IEEE802154_ATTR_LLSEC_SECLEVEL, params.out_level) ||
 	    nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER,
 			be32_to_cpu(params.frame_counter)) ||
-	    ieee802154_llsec_fill_key_id(msg, &params.out_key))
+	    ieee802154_llsec_fill_key_id(msg, &params.out_key)) {
+		rc = -ENOBUFS;
 		goto out_free;
+	}
 
 	dev_put(dev);
 
-- 
2.30.2



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