Re: [PATCH] ARM: OMAP1: ams-delta: Fix possible use of uninitialized field

From: Tony Lindgren
Date: Thu Nov 08 2018 - 12:26:03 EST


* Janusz Krzysztofik <jmkrzyszt@xxxxxxxxx> [181107 13:28]:
> While playing with initialization order of modem device, it has been
> discovered that under some circumstances (early console init, I
> believe) its .pm() callback may be called before the
> uart_port->private_data pointer is initialized from
> plat_serial8250_port->private_data, resulting in NULL pointer
> dereference. Fix it by checking for uninitialized pointer before using
> it in modem_pm().

Applying into omap-for-v4.20/fixes thanks.

Tony