padata: Fix list iterator in padata_do_serial()

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[ Upstream commit 57ddfecc72 ]

list_for_each_entry_reverse() assumes that the iterated list is nonempty
and that every list_head is embedded in the same type, but its use in
padata_do_serial() breaks both rules.

This doesn't cause any issues now because padata_priv and padata_list
happen to have their list fields at the same offset, but we really
shouldn't be relying on that.

Fixes: bfde23ce20 ("padata: unbind parallel jobs from specific CPUs")
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Daniel Jordan 2022-11-16 20:28:04 -05:00 • committed by Greg Kroah-Hartman

parent 6cfa9e60c0

commit ff28b8afb7

1 changed files with 5 additions and 2 deletions

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kernel/padata.c

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