Le 22/10/2020 à 05:23, Finn Thain a écrit :

On Wed, 21 Oct 2020, Laurent Vivier wrote:

quoted

Le 21/10/2020 à 01:43, Finn Thain a écrit :

quoted

Laurent, can we avoid the irq == 0 warning splat like this?

diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index 96e7aa479961..7db600cd8cc7 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c

@@ -1701,8 +1701,10 @@ static int __init pmz_init_port(struct uart_pmac_port *uap)
 	int irq;
 
 	r_ports = platform_get_resource(uap->pdev, IORESOURCE_MEM, 0);
+	if (!r_ports)
+		return -ENODEV;
 	irq = platform_get_irq(uap->pdev, 0);
-	if (!r_ports || irq <= 0)
+	if (irq <= 0)
 		return -ENODEV;
 
 	uap->port.mapbase  = r_ports->start;

No, this doesn't fix the problem.

Then I had better stop guessing and start up Aranym...

The patch below seems to fix the problem for me. Does it work on your 
system(s)?

It works like a charm.

Thank you,
Laurent