Hi, On Thu, Mar 2, 2023 at 11:57 AM John Ogness <john.ogn...@linutronix.de> wrote: > > It is allowed for consoles to provide no write() callback. For > example ttynull does this. > > Check if a write() callback is available before using it. > > Signed-off-by: John Ogness <john.ogn...@linutronix.de> > --- > kernel/debug/kdb/kdb_io.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/kernel/debug/kdb/kdb_io.c b/kernel/debug/kdb/kdb_io.c > index 5c7e9ba7cd6b..e9139dfc1f0a 100644 > --- a/kernel/debug/kdb/kdb_io.c > +++ b/kernel/debug/kdb/kdb_io.c > @@ -576,6 +576,8 @@ static void kdb_msg_write(const char *msg, int msg_len) > continue; > if (c == dbg_io_ops->cons) > continue; > + if (!c->write) > + continue;
Reviewed-by: Douglas Anderson <diand...@chromium.org> _______________________________________________ Kgdb-bugreport mailing list Kgdb-bugreport@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kgdb-bugreport
