crypto: algapi - convert cra_refcnt to refcount_t
Reference counters should use refcount_t rather than atomic_t, since the refcount_t implementation can prevent overflows, reducing the exploitability of reference leak bugs. crypto_alg.cra_refcount is a reference counter with the usual semantics, so switch it over to refcount_t. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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@@ -447,7 +447,7 @@ struct crypto_alg {
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unsigned int cra_alignmask;
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int cra_priority;
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atomic_t cra_refcnt;
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refcount_t cra_refcnt;
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char cra_name[CRYPTO_MAX_ALG_NAME];
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char cra_driver_name[CRYPTO_MAX_ALG_NAME];
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