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Commit d5d9abb7 authored by Zhenye Zhu's avatar Zhenye Zhu Committed by Andre Eisenbach
Browse files

PAN TAP fd is not monitored in all cases 

Bug: 18271987
Change-Id: I348f3851a955b5277e7cdf0102583eaaef2ef0f3
parent c1d96b63

system/btif/src/btif_pan.c

+8 −4
Original line number Diff line number Diff line
@@ -703,10 +703,14 @@ static void btu_exec_tap_fd_read(void *p_param) { 
                case -1:

                    BTIF_TRACE_ERROR("%s unable to read from driver: %s", __func__, strerror(errno));

                    GKI_freebuf(buffer);

                    //add fd back to monitor thread to try it again later

                    btsock_thread_add_fd(pan_pth, fd, 0, SOCK_THREAD_FD_RD, 0);

                    return;

                case 0:

                    BTIF_TRACE_WARNING("%s end of file reached.", __func__);

                    GKI_freebuf(buffer);

                    //add fd back to monitor thread to process the exception

                    btsock_thread_add_fd(pan_pth, fd, 0, SOCK_THREAD_FD_RD, 0);

                    return;

                default:

                    btpan_cb.congest_packet_size = ret;
@@ -738,11 +742,11 @@ static void btu_exec_tap_fd_read(void *p_param) { 
        ufd.fd = fd;

        ufd.events = POLLIN;

        ufd.revents = 0;

        if(poll(&ufd, 1, 0) <= 0 || IS_EXCEPTION(ufd.revents)) {

            btsock_thread_add_fd(pan_pth, fd, 0, SOCK_THREAD_FD_RD, 0);

            return;

        }

        if(poll(&ufd, 1, 0) <= 0 || IS_EXCEPTION(ufd.revents))

            break;

    }

    //add fd back to monitor thread

    btsock_thread_add_fd(pan_pth, fd, 0, SOCK_THREAD_FD_RD, 0);

}



static void btif_pan_close_all_conns() {