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net/tls: tls_is_tx_ready() checked list_entry
tls_is_tx_ready() checks that list_first_entry() does not return NULL.
This condition can never happen. For empty lists, list_first_entry()
returns the list_entry() of the head, which is a type confusion.
Use list_first_entry_or_null() which returns NULL in case of empty
lists.
Fixes: a42055e8d2
("net/tls: Add support for async encryption of records for performance")
Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it>
Link: https://lore.kernel.org/r/20230128-list-entry-null-check-tls-v1-1-525bbfe6f0d0@diag.uniroma1.it
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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1 changed files with 1 additions and 1 deletions
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@ -2427,7 +2427,7 @@ static bool tls_is_tx_ready(struct tls_sw_context_tx *ctx)
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{
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struct tls_rec *rec;
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rec = list_first_entry(&ctx->tx_list, struct tls_rec, list);
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rec = list_first_entry_or_null(&ctx->tx_list, struct tls_rec, list);
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if (!rec)
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return false;
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