diff options
| author | Tudor Ambarus <tudor.ambarus@microchip.com> | 2017-09-28 16:14:52 +0200 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2017-10-06 20:35:47 +0200 |
| commit | a297641610963bbb238ea77b32a2e958c4f7b184 (patch) | |
| tree | 6a2146816ab8ceeeb884efb835491614961370f4 /net/bluetooth/smp.c | |
| parent | Bluetooth: move ecdh allocation outside of ecdh_helper (diff) | |
| download | linux-a297641610963bbb238ea77b32a2e958c4f7b184.tar.xz linux-a297641610963bbb238ea77b32a2e958c4f7b184.zip | |
Bluetooth: ecdh_helper - reveal error codes
ecdh_helper functions were hiding the error codes and chose to return
the return value of an relational operator, "==". Remove the unnecessary
query and reveal the error codes.
While updating the return values, code in a way that compilers will
warn in case of uninitialized err.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth/smp.c')
| -rw-r--r-- | net/bluetooth/smp.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 31b64bc3cf16..af7e6100e55b 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -577,9 +577,10 @@ int smp_generate_oob(struct hci_dev *hdev, u8 hash[16], u8 rand[16]) get_random_bytes(smp->local_sk, 32); /* Generate local key pair for Secure Connections */ - if (!generate_ecdh_keys(smp->tfm_ecdh, smp->local_pk, - smp->local_sk)) - return -EIO; + err = generate_ecdh_keys(smp->tfm_ecdh, smp->local_pk, + smp->local_sk); + if (err) + return err; /* This is unlikely, but we need to check that * we didn't accidentially generate a debug key. @@ -1919,8 +1920,8 @@ static u8 sc_send_public_key(struct smp_chan *smp) get_random_bytes(smp->local_sk, 32); /* Generate local key pair for Secure Connections */ - if (!generate_ecdh_keys(smp->tfm_ecdh, smp->local_pk, - smp->local_sk)) + if (generate_ecdh_keys(smp->tfm_ecdh, smp->local_pk, + smp->local_sk)) return SMP_UNSPECIFIED; /* This is unlikely, but we need to check that @@ -3532,11 +3533,13 @@ static inline void swap_digits(u64 *in, u64 *out, unsigned int ndigits) static int __init test_debug_key(struct crypto_kpp *tfm_ecdh) { u8 pk[64], sk[32]; + int err; swap_digits((u64 *)debug_sk, (u64 *)sk, 4); - if (!generate_ecdh_keys(tfm_ecdh, pk, sk)) - return -EINVAL; + err = generate_ecdh_keys(tfm_ecdh, pk, sk); + if (err) + return err; if (crypto_memneq(sk, debug_sk, 32)) return -EINVAL; |