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Properly return error code to the caller. This should fix the following

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panic in ng_l2cap(4).

panic: ng_l2cap_l2ca_con_req: ubt0l2cap - could not find connection!

While i'm here get rid of few goto's.

MFC after:	1 week
This commit is contained in:
emax 2009-01-19 22:06:35 +00:00
parent f91eeb6c9e
commit bf3d7c639d
1 changed files with 26 additions and 20 deletions
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46
sys/netgraph/bluetooth/l2cap/ng_l2cap_llpi.c
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@ -116,10 +116,14 @@ ng_l2cap_lp_con_req(ng_l2cap_p l2cap, bdaddr_p bdaddr)
NG_SEND_MSG_HOOK(error, l2cap->node, msg, l2cap->hci, 0);
if (error != 0) {
if ((error = ng_l2cap_lp_untimeout(con)) != 0)
return (error);
if (ng_l2cap_lp_untimeout(con) == 0)
ng_l2cap_free_con(con);
ng_l2cap_free_con(con);
/*
* Do not free connection if ng_l2cap_lp_untimeout() failed
* let timeout handler deal with it. Always return error to
* the caller.
*/
}
return (error);
@ -213,8 +217,8 @@ ng_l2cap_lp_con_ind(ng_l2cap_p l2cap, struct ng_mesg *msg)
NG_L2CAP_ALERT(
"%s: %s - invalid LP_ConnectInd message size\n",
__func__, NG_NODE_NAME(l2cap->node));
error = EMSGSIZE;
goto out;
return (EMSGSIZE);
}
ep = (ng_hci_lp_con_ind_ep *) (msg->data);
@ -227,8 +231,8 @@ ng_l2cap_lp_con_ind(ng_l2cap_p l2cap, struct ng_mesg *msg)
"Connection already exists, state=%d, con_handle=%d\n",
__func__, NG_NODE_NAME(l2cap->node), con->state,
con->con_handle);
error = EEXIST;
goto out;
return (EEXIST);
}
/* Check if lower layer protocol is still connected */
@ -236,24 +240,22 @@ ng_l2cap_lp_con_ind(ng_l2cap_p l2cap, struct ng_mesg *msg)
NG_L2CAP_ERR(
"%s: %s - hook \"%s\" is not connected or valid",
__func__, NG_NODE_NAME(l2cap->node), NG_L2CAP_HOOK_HCI);
error = ENOTCONN;
goto out;
return (ENOTCONN);
}
/* Create and intialize new connection descriptor */
con = ng_l2cap_new_con(l2cap, &ep->bdaddr);
if (con == NULL) {
error = ENOMEM;
goto out;
}
if (con == NULL)
return (ENOMEM);
/* Create and send LP_ConnectRsp event */
NG_MKMESSAGE(rsp, NGM_HCI_COOKIE, NGM_HCI_LP_CON_RSP,
sizeof(*rp), M_NOWAIT);
if (rsp == NULL) {
ng_l2cap_free_con(con);
error = ENOMEM;
goto out;
return (ENOMEM);
}
rp = (ng_hci_lp_con_rsp_ep *)(rsp->data);
@ -266,14 +268,18 @@ ng_l2cap_lp_con_ind(ng_l2cap_p l2cap, struct ng_mesg *msg)
NG_SEND_MSG_HOOK(error, l2cap->node, rsp, l2cap->hci, 0);
if (error != 0) {
if ((error = ng_l2cap_lp_untimeout(con)) != 0)
goto out;
if (ng_l2cap_lp_untimeout(con) == 0)
ng_l2cap_free_con(con);
ng_l2cap_free_con(con);
/*
* Do not free connection if ng_l2cap_lp_untimeout() failed
* let timeout handler deal with it. Always return error to
* the caller.
*/
}
out:
return (error);
} /* ng_hci_lp_con_ind */
} /* ng_l2cap_lp_con_ind */
/*
* Process LP_DisconnectInd event from the lower layer protocol. We have been