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authorMichal Ostrowski <mostrows@watson.ibm.com>2005-07-14 16:46:26 -0700
committerChris Wright <chrisw@osdl.org>2005-08-05 00:04:15 -0700
commite0b02eec6f8371d993c4aca134d728d3510f7c8a (patch)
tree206fca2f99250a7f834802efee490c7db0ccedf9
parent50eb930a92e7070f6a110789245398bff4061059 (diff)
[PATCH] rocket.c: Fix ldisc ref count handling
If bailing out because there is nothing to receive in rp_do_receive(), tty_ldisc_deref is not called. Failure to do so increases the ref count=20 and causes release_dev() to hang since it can't get the ref count to 0. Signed-off-by: Michal Ostrowski <mostrows@watson.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Chris Wright <chrisw@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/char/rocket.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
index 5bcbeb0cb9ae..60882ec16984 100644
--- a/drivers/char/rocket.c
+++ b/drivers/char/rocket.c
@@ -277,7 +277,7 @@ static void rp_do_receive(struct r_port *info,
ToRecv = space;
if (ToRecv <= 0)
- return;
+ goto done;
/*
* if status indicates there are errored characters in the
@@ -359,6 +359,7 @@ static void rp_do_receive(struct r_port *info,
}
/* Push the data up to the tty layer */
ld->receive_buf(tty, tty->flip.char_buf, tty->flip.flag_buf, count);
+done:
tty_ldisc_deref(ld);
}