On Tue, May 12, 2020 at 04:00:23PM -0700, Palmer Dabbelt wrote: > On Sat, 09 May 2020 03:24:12 PDT (-0700), sagar.kadam@xxxxxxxxxx wrote: > > An uninitialised spin lock for sifive serial console raises a bad > > magic spin_lock error as reported and discussed here [1]. > > Initialising the spin lock resolves the issue. > > > > The fix is tested on HiFive Unleashed A00 board with Linux 5.7-rc4 > > and OpenSBI v0.7 > > > > [1] https://lore.kernel.org/linux-riscv/b9fe49483a903f404e7acc15a6efbef756db28ae.camel@xxxxxxx > > > > Fixes: 45c054d0815b ("tty: serial: add driver for the SiFive UART") > > Reported-by: Atish Patra <Atish.Patra@xxxxxxx> > > Signed-off-by: Sagar Shrikant Kadam <sagar.kadam@xxxxxxxxxx> > > --- > > drivers/tty/serial/sifive.c | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/drivers/tty/serial/sifive.c b/drivers/tty/serial/sifive.c > > index 13eadcb..0b5110d 100644 > > --- a/drivers/tty/serial/sifive.c > > +++ b/drivers/tty/serial/sifive.c > > @@ -883,6 +883,7 @@ console_initcall(sifive_console_init); > > > > static void __ssp_add_console_port(struct sifive_serial_port *ssp) > > { > > + spin_lock_init(&ssp->port.lock); > > sifive_serial_console_ports[ssp->port.line] = ssp; > > } > > Reviewed-by: Palmer Dabbelt <palmerdabbelt@xxxxxxxxxx> > Acked-by: Palmer Dabbelt <palmerdabbelt@xxxxxxxxxx> > > I'm assuming it's going in through Greg's tree. Sure, I'll be glad to take it. greg k-h
