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authorTilman Schmidt <tilman@imap.cc>2009-10-01 04:28:44 +0000
committerDavid S. Miller <davem@davemloft.net>2009-10-07 01:07:41 -0700
commit92d326f61b553250780786e9dd8609d4b32f8de7 (patch)
tree3a25922deeefb001c9303e2f33465f5a2d1fb01b /drivers/net/ppp_async.c
parenta549952ad323d68daf5b50bf716db895479af84c (diff)
downloadblackbird-op-linux-92d326f61b553250780786e9dd8609d4b32f8de7.tar.gz
blackbird-op-linux-92d326f61b553250780786e9dd8609d4b32f8de7.zip
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 <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ppp_async.c')
-rw-r--r--drivers/net/ppp_async.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/net/ppp_async.c b/drivers/net/ppp_async.c
index 6de8399d6dd9..30b1b3326765 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)
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