[lwip-devel] [ppp-new]function ppp_clear() will clean pppos input thread file descriptor.

[韩辉]

Hi 

   Sylvain Rochet

    If I use pppos, the input thread "ppp_input_thread()" use "pcrx->fd" as tty file descriptor. then I called ppp_reopen(), the ppp_clear() will use memset() clean all memory of the ppp_pcb following ppp-> phase, so pcrx->fd will be 0.

hanhui