From 15cb0d55275d8d2c3509d2f529daa754a4e7a74d Mon Sep 17 00:00:00 2001 From: Wisley Chen Date: Tue, 5 Sep 2023 13:12:10 +0800 Subject: 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 Reviewed-on: https://review.coreboot.org/c/coreboot/+/77646 Reviewed-by: Eric Lai Reviewed-by: David Wu Tested-by: build bot (Jenkins) --- src/mainboard/google/brya/variants/kano/memory.c | 11 ++++++----- src/mainboard/google/brya/variants/osiris/memory.c | 11 ++++++----- src/mainboard/google/brya/variants/taeko/memory.c | 11 ++++++----- 3 files changed, 18 insertions(+), 15 deletions(-) (limited to 'src/mainboard/google/brya') diff --git a/src/mainboard/google/brya/variants/kano/memory.c b/src/mainboard/google/brya/variants/kano/memory.c index 416fb073cf..c81f8cc21f 100644 --- a/src/mainboard/google/brya/variants/kano/memory.c +++ b/src/mainboard/google/brya/variants/kano/memory.c @@ -136,10 +136,11 @@ const struct mb_cfg *variant_memory_params(void) 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 564289875f..4d16379174 100644 --- a/src/mainboard/google/brya/variants/osiris/memory.c +++ b/src/mainboard/google/brya/variants/osiris/memory.c @@ -136,10 +136,11 @@ const struct mb_cfg *variant_memory_params(void) 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 72a6be2964..cecfdc6222 100644 --- a/src/mainboard/google/brya/variants/taeko/memory.c +++ b/src/mainboard/google/brya/variants/taeko/memory.c @@ -135,12 +135,13 @@ static const struct mb_cfg hynix_memconfig = { 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) -- cgit v1.2.3