soc/amd/picasso: add NULL-pointer check to root_complex_fill_ssdt
Found-by: Coverity CID 1429980
Change-Id: Ia72b9dbe029a5da98e408a9cf16fa4a93b10917a
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42846
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
diff --git a/src/soc/amd/picasso/root_complex.c b/src/soc/amd/picasso/root_complex.c
index 4930a0e..036ff00 100644
--- a/src/soc/amd/picasso/root_complex.c
+++ b/src/soc/amd/picasso/root_complex.c
@@ -135,6 +135,12 @@
{
msr_t msr;
+ if (!device) {
+ printk(BIOS_ERR, "%s: device is NULL! ACPI SSDT will be incomplete.\n",
+ __func__);
+ return;
+ }
+
acpigen_write_scope(acpi_device_scope(device));
msr = rdmsr(TOP_MEM);