From 92d326f61b553250780786e9dd8609d4b32f8de7 Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Thu, 1 Oct 2009 04:28:44 +0000 Subject: [PATCH] net/ppp: fix comments - ppp_{sync,asynctty}_receive() may sleep 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 Signed-off-by: David S. Miller --- drivers/net/ppp_async.c | 5 +---- drivers/net/ppp_synctty.c | 5 +---- 2 files changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/net/ppp_async.c b/drivers/net/ppp_async.c index 6de8399d6dd..30b1b332676 100644 --- a/drivers/net/ppp_async.c +++ b/drivers/net/ppp_async.c @@ -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) diff --git a/drivers/net/ppp_synctty.c b/drivers/net/ppp_synctty.c index d2fa2db1358..c908b08dc98 100644 --- a/drivers/net/ppp_synctty.c +++ b/drivers/net/ppp_synctty.c @@ -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)