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net: ethtool: cable-test: Release RTNL when the PHY isn't found

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Use the correct logic to check for the presence of a PHY device, and
jump to a label that correctly releases RTNL in case of an error, as we
are holding RTNL at that point.

Fixes: 3688ff3077 ("net: ethtool: cable-test: Target the command to the requested PHY")
Closes: https://lore.kernel.org/netdev/20240827104825.5cbe0602@fedora-3.home/T/#m6bc49cdcc5cfab0d162516b92916b944a01c833f
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20240827092314.2500284-1-maxime.chevallier@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Maxime Chevallier 2024-08-27 11:23:13 +02:00 committed by Jakub Kicinski
parent 646f071d31
commit ad78337cb2
1 changed files with 2 additions and 2 deletions
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4
net/ethtool/cabletest.c
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@ -342,9 +342,9 @@ int ethnl_act_cable_test_tdr(struct sk_buff *skb, struct genl_info *info)
phydev = ethnl_req_get_phydev(&req_info,
tb[ETHTOOL_A_CABLE_TEST_TDR_HEADER],
info->extack);
if (!IS_ERR_OR_NULL(phydev)) {
if (IS_ERR_OR_NULL(phydev)) {
ret = -EOPNOTSUPP;
goto out_dev_put;
goto out_rtnl;
}
ops = ethtool_phy_ops;