[lwip-devel] Pbuf bug fix

[許胤堯]

Dear all…

Pbuf_alloc( ) in Pbuf.c --> original code

    Pbuf_pool case:

    p->len = length > PBUF_POOL_BUFSIZE - offset? PBUF_POOL_BUFSIZE - offset: length;   

Must be modified to -->

p->len = length > (PBUF_POOL_BUFSIZE - offset - (sizeof(struct pbuf)))?

(PBUF_POOL_BUFSIZE - offset - (sizeof(struct pbuf))): length;

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