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Luka Gejak c1ed6d68fb net: hsr: fix VLAN add unwind on slave errors

[ Upstream commit 2e3514e63b ]

When vlan_vid_add() fails for a secondary slave, the error path calls
vlan_vid_del() on the failing port instead of the peer slave that had
already succeeded. This results in asymmetric VLAN state across the HSR
pair.

Fix this by switching to a centralized unwind path that removes the VID
from any slave device that was already programmed.

Fixes: 1a8a63a530 ("net: hsr: Add VLAN CTAG filter support")
Signed-off-by: Luka Gejak <luka.gejak@linux.dev>
Link: https://patch.msgid.link/20260401092243.52121-3-luka.gejak@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2026-04-11 14:24:37 +02:00

hsr_debugfs.c

…

hsr_device.c

net: hsr: fix VLAN add unwind on slave errors

2026-04-11 14:24:37 +02:00

hsr_device.h

…

hsr_forward.c

net/hsr: fix NULL pointer dereference in prp_get_untagged_frame()

2026-01-08 10:14:08 +01:00

hsr_forward.h