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-rw-r--r--src/soc/amd/picasso/root_complex.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/soc/amd/picasso/root_complex.c b/src/soc/amd/picasso/root_complex.c
index 4930a0e87f..036ff00ccb 100644
--- a/src/soc/amd/picasso/root_complex.c
+++ b/src/soc/amd/picasso/root_complex.c
@@ -135,6 +135,12 @@ static void root_complex_fill_ssdt(const struct device *device)
{
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);