diff options
| author | Eric Biggers <ebiggers@google.com> | 2019-11-17 23:21:58 -0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-11-22 18:48:39 +0800 |
| commit | b62755aed3a3f5ca9edd2718339ccea3b6bbbe57 (patch) | |
| tree | 6cef27d00d7e9442dee0f7f18c275607c8f58412 /arch | |
| parent | 2043323a799a660bc84bbee404cf7a2617ec6157 (diff) | |
crypto: x86/chacha - only unregister algorithms if registered
It's not valid to call crypto_unregister_skciphers() without a prior
call to crypto_register_skciphers().
Fixes: 84e03fa39fbe ("crypto: x86/chacha - expose SIMD ChaCha routine as library function")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/crypto/chacha_glue.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/crypto/chacha_glue.c b/arch/x86/crypto/chacha_glue.c index b391e13a9e41..a94e30b6f941 100644 --- a/arch/x86/crypto/chacha_glue.c +++ b/arch/x86/crypto/chacha_glue.c @@ -304,7 +304,8 @@ static int __init chacha_simd_mod_init(void) static void __exit chacha_simd_mod_fini(void) { - crypto_unregister_skciphers(algs, ARRAY_SIZE(algs)); + if (boot_cpu_has(X86_FEATURE_SSSE3)) + crypto_unregister_skciphers(algs, ARRAY_SIZE(algs)); } module_init(chacha_simd_mod_init); |