linux/net/ethtool
Maxime Chevallier 81a5174e64 net: ethtool: Don't call .cleanup_data when prepare_data fails
[ Upstream commit 4f038a6a02 ]

There's a consistent pattern where the .cleanup_data() callback is
called when .prepare_data() fails, when it should really be called to
clean after a successful .prepare_data() as per the documentation.

Rewrite the error-handling paths to make sure we don't cleanup
un-prepared data.

Fixes: c781ff12a2 ("ethtool: Allow network drivers to dump arbitrary EEPROM data")
Reviewed-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20250407130511.75621-1-maxime.chevallier@bootlin.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-05-02 07:43:52 +02:00
..
bitset.c ethtool: Fix wrong mod state in case of verbose and no_mask bitset 2024-12-14 19:51:28 +01:00
bitset.h ethtool: add ethnl_parse_bitset() helper 2020-03-12 15:32:32 -07:00
cabletest.c ethtool: link up ethnl_header_policy as a nested policy 2020-10-06 06:25:55 -07:00
channels.c ethtool: fix the check logic of at least one channel for RX/TX 2021-02-28 11:49:07 -08:00
coalesce.c ethtool: extend coalesce setting uAPI with CQE mode 2021-08-24 07:38:29 -07:00
common.c net: sock: extend SO_TIMESTAMPING for PHC binding 2021-07-01 13:08:18 -07:00
common.h net: ethtool: Export helpers for getting EEPROM info 2021-04-11 16:34:56 -07:00
debug.c ethtool: link up ethnl_header_policy as a nested policy 2020-10-06 06:25:55 -07:00
eee.c ethtool: fix incorrect datatype in set_eee ops 2021-04-06 16:42:25 -07:00
eeprom.c ethtool: eeprom: fix null-deref on genl_info in dump 2022-11-03 23:59:14 +09:00
features.c ethtool: netlink: Add missing ethnl_ops_begin/complete 2024-01-25 14:52:54 -08:00
fec.c ethtool: add FEC statistics 2021-04-15 17:08:29 -07:00
ioctl.c ethtool: check device is present when getting link settings 2024-09-04 13:23:40 +02:00
linkinfo.c ethtool: link up ethnl_header_policy as a nested policy 2020-10-06 06:25:55 -07:00
linkmodes.c ethtool: reset #lanes when lanes is omitted 2023-04-13 16:48:20 +02:00
linkstate.c ethtool: netlink: do not return SQI value if link is down 2024-07-18 13:07:38 +02:00
Makefile ethtool: add a new command for getting PHC virtual clocks 2021-07-01 13:08:18 -07:00
netlink.c net: ethtool: Don't call .cleanup_data when prepare_data fails 2025-05-02 07:43:52 +02:00
netlink.h ethtool: add two coalesce attributes for CQE mode 2021-08-24 07:38:28 -07:00
pause.c ethtool: fix ethtool msg len calculation for pause stats 2021-11-18 19:17:06 +01:00
phc_vclocks.c ethtool: add a new command for getting PHC virtual clocks 2021-07-01 13:08:18 -07:00
privflags.c ethtool: link up ethnl_header_policy as a nested policy 2020-10-06 06:25:55 -07:00
rings.c ethtool: link up ethnl_header_policy as a nested policy 2020-10-06 06:25:55 -07:00
stats.c ethtool: stats: Fix a copy-paste error 2021-05-19 11:57:33 -07:00
strset.c ethtool: strset: fix message length calculation 2021-06-14 12:14:24 -07:00
tsinfo.c ethtool: link up ethnl_header_policy as a nested policy 2020-10-06 06:25:55 -07:00
tunnels.c ethtool: link up ethnl_header_policy as a nested policy 2020-10-06 06:25:55 -07:00
wol.c ethtool: link up ethnl_header_policy as a nested policy 2020-10-06 06:25:55 -07:00