net/sched: sch_teql: fix shadowed err in __teql_resolve()

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__teql_resolve() declares an inner 'int err;' inside the
'if (neigh_event_send(n, skb_res) == 0)' block, shadowing the outer
'int err = 0;'. As a result, a negative return from dev_hard_header()
is written to the inner variable and __teql_resolve() still returns 0.

Remove the shadowed variable and set the outer err to -EINVAL when
dev_hard_header() returns a negative error.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Closes: https://lore.kernel.org/netdev/179022851638.2160803.1808206741379444999@kernel.org/
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260924082951.1599377-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Eric Dumazet 2026-09-24 08:29:50 +00:00 • committed by Jakub Kicinski

parent ac704ff08e

commit 907b978e82

1 changed files with 2 additions and 5 deletions

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net/sched/sch_teql.c

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