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| author | Eric Biggers <ebiggers@google.com> | 2017-12-29 10:00:46 -0600 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-01-05 18:43:09 +1100 |
| commit | 2431f0da543e8c93333ed3b3c8ab9a1158404959 (patch) | |
| tree | 61ec83a2a3b013ba8078d74be682dffa584a8109 /crypto/proc.c | |
| parent | aa6bade9aa65fa4e09010f6c744f4727fce612de (diff) | |
| download | linux-crypto-2431f0da543e8c93333ed3b3c8ab9a1158404959.tar.gz linux-crypto-2431f0da543e8c93333ed3b3c8ab9a1158404959.zip | |
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>
Diffstat (limited to 'crypto/proc.c')
| -rw-r--r-- | crypto/proc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/proc.c b/crypto/proc.c index 2cc10c96..822fcef6 100644 --- a/crypto/proc.c +++ b/crypto/proc.c @@ -46,7 +46,7 @@ static int c_show(struct seq_file *m, void *p) seq_printf(m, "driver : %s\n", alg->cra_driver_name); seq_printf(m, "module : %s\n", module_name(alg->cra_module)); seq_printf(m, "priority : %d\n", alg->cra_priority); - seq_printf(m, "refcnt : %d\n", atomic_read(&alg->cra_refcnt)); + seq_printf(m, "refcnt : %u\n", refcount_read(&alg->cra_refcnt)); seq_printf(m, "selftest : %s\n", (alg->cra_flags & CRYPTO_ALG_TESTED) ? "passed" : "unknown"); |