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Commit 48f40d47 authored by git-zhenye.broadcom.com's avatar git-zhenye.broadcom.com
Browse files

Fixed deadlock issue for concurrent multiple rfcomm connections. 

Bug 15469934

Change-Id: I77a3dc97c92f0ccd5764220e8e0bf5c0689d7b12
parent 52f504ff

system/btif/src/btif_sock_rfc.c

+8 −1
Original line number Diff line number Diff line
@@ -888,7 +888,14 @@ void btsock_rfc_signaled(int fd, int flags, uint32_t user_id) 
                    //make sure there's data pending in case the peer closed the socket

                    if(!(flags & SOCK_THREAD_FD_EXCEPTION) ||

                                (ioctl(rs->fd, FIONREAD, &size) == 0 && size))

                        BTA_JvRfcommWrite(rs->rfc_handle, (UINT32)rs->id);

                    {

                        int rfc_handle = rs->rfc_handle;

                        UINT32 rs_id = rs->id;

                        //unlock before BTA_JvRfcommWrite to avoid deadlock on concurrnet multi rfcomm connectoins

                        unlock_slot(&slot_lock);

                        BTA_JvRfcommWrite(rfc_handle, rs_id);

                        return;

                    }

                }

                else

                {