This fixes error handling in the function aes_cmac by properly
checking if the call to the function crypto_hast_init failed by
returning a error code and if so tell the user with BT_ERR that
the crypto hash table initialization failed before returning the
error code to signal to the caller of this particular function
that their call of aes_cmac has failed.
Signed-off-by: Nicholas Krause <[email protected]>
---
net/bluetooth/smp.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index ad82324..2f73bf9 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -184,7 +184,11 @@ static int aes_cmac(struct crypto_hash *tfm, const u8 k[16], const u8 *m,
desc.tfm = tfm;
desc.flags = 0;
- crypto_hash_init(&desc);
+ err = crypto_hash_init(&desc);
+ if (err) {
+ BT_ERR("crypto hash init failed: %d", err);
+ return err;
+ }
/* Swap key and message from LSB to MSB */
swap_buf(k, tmp, 16);
--
2.1.4