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[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>
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1 changed files with 2 additions and 1 deletions
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@ -277,7 +277,7 @@ static void rp_do_receive(struct r_port *info,
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ToRecv = space;
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if (ToRecv <= 0)
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return;
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goto done;
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/*
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* if status indicates there are errored characters in the
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@ -359,6 +359,7 @@ static void rp_do_receive(struct r_port *info,
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}
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/* Push the data up to the tty layer */
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ld->receive_buf(tty, tty->flip.char_buf, tty->flip.flag_buf, count);
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done:
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tty_ldisc_deref(ld);
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}
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