From d1d900f822b6b2874de9c1ef8094fc8df56a2f9f Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Mon, 6 Apr 2020 11:54:38 -0700 Subject: Bluetooth: Simplify / fix return values from tk_request Some static checker run by 0day reports a variableScope warning. net/bluetooth/smp.c:870:6: warning: The scope of the variable 'err' can be reduced. [variableScope] There is no need for two separate variables holding return values. Stick with the existing variable. While at it, don't pre-initialize 'ret' because it is set in each code path. tk_request() is supposed to return a negative error code on errors, not a bluetooth return code. The calling code converts the return value to SMP_UNSPECIFIED if needed. Fixes: 92516cd97fd4 ("Bluetooth: Always request for user confirmation for Just Works") Cc: Sonny Sasaka Signed-off-by: Guenter Roeck Reviewed-by: Sonny Sasaka Signed-off-by: Sonny Sasaka Signed-off-by: Marcel Holtmann --- net/bluetooth/smp.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'net') diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index a85e3e49cd0d..daf198fb2b31 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -854,8 +854,7 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth, struct l2cap_chan *chan = conn->smp; struct smp_chan *smp = chan->data; u32 passkey = 0; - int ret = 0; - int err; + int ret; /* Initialize key for JUST WORKS */ memset(smp->tk, 0, sizeof(smp->tk)); @@ -887,12 +886,12 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth, /* If Just Works, Continue with Zero TK and ask user-space for * confirmation */ if (smp->method == JUST_WORKS) { - err = mgmt_user_confirm_request(hcon->hdev, &hcon->dst, + ret = mgmt_user_confirm_request(hcon->hdev, &hcon->dst, hcon->type, hcon->dst_type, passkey, 1); - if (err) - return SMP_UNSPECIFIED; + if (ret) + return ret; set_bit(SMP_FLAG_WAIT_USER, &smp->flags); return 0; } -- cgit v1.2.3-59-g8ed1b