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| author | Eric Biggers <ebiggers@google.com> | 2017-12-29 19:00:46 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-01-05 10:43:09 +0300 |
| commit | ce8614a312ef750bb60677bb13680cb27d1c284b (patch) | |
| tree | 842f01d86dc235bcd80c8544969d9fffeaec30c5 /crypto/proc.c | |
| parent | 809778e02cd45d0625439fee67688f655627bb3c (diff) | |
| download | linux-ce8614a312ef750bb60677bb13680cb27d1c284b.tar.xz | |
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 2cc10c96d753..822fcef6d91c 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"); |