soc/amd/block/ivrs: Add NULL check for IVRS
Add NULL check for ivrs pointer before use.
Signed-off-by: Naresh Solanki <Naresh.Solanki@9elements.com>
Change-Id: Ibeb0ea3bcaa3512a93500588ad4f11046edee61f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75506
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
diff --git a/src/soc/amd/common/block/acpi/ivrs.c b/src/soc/amd/common/block/acpi/ivrs.c
index 089b42d..ca58c35 100644
--- a/src/soc/amd/common/block/acpi/ivrs.c
+++ b/src/soc/amd/common/block/acpi/ivrs.c
@@ -310,6 +310,11 @@
struct device *nb_dev;
struct device *dev = NULL;
+ if (ivrs == NULL) {
+ printk(BIOS_WARNING, "%s: ivrs is NULL\n", __func__);
+ return current;
+ }
+
ivhd = &ivrs->ivhd;
while ((dev = dev_find_path(dev, DEVICE_PATH_DOMAIN)) != NULL) {