Paul Mackerras wrote:
>
> The following patch should make the PPP driver in 2.2 SMP-safe.
>
I found the following function in the 2.3 syncPPP driver:
> static void
> ppp_sync_receive(struct tty_struct *tty, const unsigned char *buf,
> char *flags, int count)
> {
> struct syncppp *ap = tty->disc_data;
>
> if (ap == 0)
> return;
> trylock_recv_path(ap);
> ppp_sync_input(ap, buf, flags, count);
Is is guaranteed that the trylock_recv_path() will never fail, or is
that a typo? If this call cannot fail, please add a comment, or even
better a BUG(), or a FIXME.
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