mb/google/brya/var/{kano,osiris,taeko}: Add null pointer check
Without part no. in CBI, mainboard_get_dram_part_num returns null.
To prevent passing this null pointer to strcmp and avoid unexpected
behavior, proper handling is necessary.
BUG=none
TEST=emerge-brya coreboot
Change-Id: I47e42376c6b1347c56afaec218aed63c5469f0aa
Signed-off-by: Wisley Chen <wisley.chen@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77646
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: David Wu <david_wu@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/brya/variants/kano/memory.c b/src/mainboard/google/brya/variants/kano/memory.c
index 416fb07..c81f8cc 100644
--- a/src/mainboard/google/brya/variants/kano/memory.c
+++ b/src/mainboard/google/brya/variants/kano/memory.c
@@ -136,10 +136,11 @@
const char *hynix_mem1 = "H54G46CYRBX267";
const char *hynix_mem2 = "H54G56CYRBX247";
- if (!strcmp(part_num, hynix_mem1) || !strcmp(part_num, hynix_mem2)) {
- printk(BIOS_INFO, "Enable cs_pi_start_high_in_ect for Hynix memory\n");
- return &hynix_memcfg;
- } else {
- return &kano_memcfg;
+ if (part_num) {
+ if (!strcmp(part_num, hynix_mem1) || !strcmp(part_num, hynix_mem2)) {
+ printk(BIOS_INFO, "Enable cs_pi_start_high_in_ect for Hynix memory\n");
+ return &hynix_memcfg;
+ }
}
+ return &kano_memcfg;
}
diff --git a/src/mainboard/google/brya/variants/osiris/memory.c b/src/mainboard/google/brya/variants/osiris/memory.c
index 5642898..4d16379 100644
--- a/src/mainboard/google/brya/variants/osiris/memory.c
+++ b/src/mainboard/google/brya/variants/osiris/memory.c
@@ -136,10 +136,11 @@
const char *hynix_mem1 = "H54G46CYRBX267";
const char *hynix_mem2 = "H54G56CYRBX247";
- if (!strcmp(part_num, hynix_mem1) || !strcmp(part_num, hynix_mem2)) {
- printk(BIOS_INFO, "Enable cs_pi_start_high_in_ect for Hynix memory\n");
- return &hynix_memcfg;
- } else {
- return &osiris_memcfg;
+ if (part_num) {
+ if (!strcmp(part_num, hynix_mem1) || !strcmp(part_num, hynix_mem2)) {
+ printk(BIOS_INFO, "Enable cs_pi_start_high_in_ect for Hynix memory\n");
+ return &hynix_memcfg;
+ }
}
+ return &osiris_memcfg;
}
diff --git a/src/mainboard/google/brya/variants/taeko/memory.c b/src/mainboard/google/brya/variants/taeko/memory.c
index 72a6be2..cecfdc6 100644
--- a/src/mainboard/google/brya/variants/taeko/memory.c
+++ b/src/mainboard/google/brya/variants/taeko/memory.c
@@ -135,12 +135,13 @@
const struct mb_cfg *variant_memory_params(void)
{
const char *dram_part_num = mainboard_get_dram_part_num();
- if (strcmp(dram_part_num, "H54G46CYRBX267N") == 0) {
- printk(BIOS_INFO, "Enable cs_pi_start_high_in_ect for Hynix DRAM part\n");
- return &hynix_memconfig;
- } else {
- return &baseboard_memcfg;
+ if (dram_part_num) {
+ if (strcmp(dram_part_num, "H54G46CYRBX267N") == 0) {
+ printk(BIOS_INFO, "Enable cs_pi_start_high_in_ect for Hynix DRAM part\n");
+ return &hynix_memconfig;
+ }
}
+ return &baseboard_memcfg;
}
int variant_memory_sku(void)