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net/ppp: fix comments - ppp_{sync,asynctty}_receive() may sleep

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The receive_buf methods of the N_PPP and N_SYNC_PPP line disciplines,
ppp_asynctty_receive() and ppp_sync_receive(), call tty_unthrottle()
which may sleep. Fix the comments claiming otherwise.

Impact: documentation
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tilman Schmidt 2009-10-01 04:28:44 +00:00 committed by David S. Miller
parent a549952ad3
commit 92d326f61b
2 changed files with 2 additions and 8 deletions
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5
drivers/net/ppp_async.c
View file

@ -337,10 +337,7 @@ ppp_asynctty_poll(struct tty_struct *tty, struct file *file, poll_table *wait)
return 0;
}
/*
* This can now be called from hard interrupt level as well
* as soft interrupt level or mainline.
*/
/* May sleep, don't call from interrupt level or with interrupts disabled */
static void
ppp_asynctty_receive(struct tty_struct *tty, const unsigned char *buf,
char *cflags, int count)

5
drivers/net/ppp_synctty.c
View file

@ -378,10 +378,7 @@ ppp_sync_poll(struct tty_struct *tty, struct file *file, poll_table *wait)
return 0;
}
/*
* This can now be called from hard interrupt level as well
* as soft interrupt level or mainline.
*/
/* May sleep, don't call from interrupt level or with interrupts disabled */
static void
ppp_sync_receive(struct tty_struct *tty, const unsigned char *buf,
char *cflags, int count)