[coreboot-gerrit] Change in coreboot[master]: arch/x86/acpigen.c: Prevent null pointer dereference

[Angel Pons (Code Review)]

Angel Pons has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/39387 )

Change subject: arch/x86/acpigen.c: Prevent null pointer dereference
......................................................................

arch/x86/acpigen.c: Prevent null pointer dereference

Change-Id: I7705d9a371b54f61b5050de34a05fe08a8989571
Signed-off-by: Angel Pons 
---
M src/arch/x86/acpigen.c
1 file changed, 5 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/87/39387/1

diff --git a/src/arch/x86/acpigen.c b/src/arch/x86/acpigen.c
index a599b0e..0abab11 100644
--- a/src/arch/x86/acpigen.c
+++ b/src/arch/x86/acpigen.c
@@ -288,6 +288,11 @@
    int dotcount = 0, i;
    int dotpos = 0;

+	if (!namepath) {
+		printk(BIOS_ERR, "%s: namepath is NULL!\n");
+		return;
+	}
+
    /* We can start with a ''. */
    if (namepath[0] == '\') {
    	acpigen_emit_byte('\');