[PATCH 5.12 044/161] ieee802154: fix error return code in ieee802154_add_iface()

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From: Zhen Lei <thunder.leizhen@xxxxxxxxxx>

[ Upstream commit 79c6b8ed30e54b401c873dbad2511f2a1c525fd5 ]

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

Fixes: be51da0f3e34 ("ieee802154: Stop using NLA_PUT*().")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210508062517.2574-1-thunder.leizhen@xxxxxxxxxx
Signed-off-by: Stefan Schmidt <stefan@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 net/ieee802154/nl-phy.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/ieee802154/nl-phy.c b/net/ieee802154/nl-phy.c
index 2cdc7e63fe17..88215b5c93aa 100644
--- a/net/ieee802154/nl-phy.c
+++ b/net/ieee802154/nl-phy.c
@@ -241,8 +241,10 @@ int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) ||
-	    nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name))
+	    nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name)) {
+		rc = -EMSGSIZE;
 		goto nla_put_failure;
+	}
 	dev_put(dev);
 
 	wpan_phy_put(phy);
-- 
2.30.2






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