src/acpi/acpigen: Add NULL pointer check
Add NULL pointer check in acpigen_emit_namestring
to avoid segmentation fault.
Change-Id: I3d01d28e74f202278b5a5a96d2edd45c66f10883
Signed-off-by: Ronak Kanabar <ronak.kanabar@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48148
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/acpi/acpigen.c b/src/acpi/acpigen.c
index 244ac54..9a5543d 100644
--- a/src/acpi/acpigen.c
+++ b/src/acpi/acpigen.c
@@ -291,6 +291,10 @@
int dotcount = 0, i;
int dotpos = 0;
+ /* Check for NULL pointer */
+ if (!namepath)
+ return;
+
/* We can start with a '\'. */
if (namepath[0] == '\\') {
acpigen_emit_byte('\\');