diff options
Diffstat (limited to 'arch/s390/kernel/setup.c')
| -rw-r--r-- | arch/s390/kernel/setup.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 12934e8fbb91..2c642af526ce 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -378,6 +378,10 @@ static void __init setup_lowcore_dat_off(void) */ BUILD_BUG_ON(sizeof(struct lowcore) != LC_PAGES * PAGE_SIZE); lc = memblock_alloc_low(sizeof(*lc), sizeof(*lc)); + if (!lc) + panic("%s: Failed to allocate %zu bytes align=%zx\n", + __func__, sizeof(*lc), sizeof(*lc)); + lc->restart_psw.mask = PSW_KERNEL_BITS; lc->restart_psw.addr = (unsigned long) restart_int_handler; lc->external_new_psw.mask = PSW_KERNEL_BITS | PSW_MASK_MCHECK; @@ -419,6 +423,9 @@ static void __init setup_lowcore_dat_off(void) * all CPUs in cast *one* of them does a PSW restart. */ restart_stack = memblock_alloc(THREAD_SIZE, THREAD_SIZE); + if (!restart_stack) + panic("%s: Failed to allocate %lu bytes align=0x%lx\n", + __func__, THREAD_SIZE, THREAD_SIZE); restart_stack += STACK_INIT_OFFSET; /* @@ -495,6 +502,9 @@ static void __init setup_resources(void) for_each_memblock(memory, reg) { res = memblock_alloc(sizeof(*res), 8); + if (!res) + panic("%s: Failed to allocate %zu bytes align=0x%x\n", + __func__, sizeof(*res), 8); res->flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM; res->name = "System RAM"; @@ -509,6 +519,9 @@ static void __init setup_resources(void) continue; if (std_res->end > res->end) { sub_res = memblock_alloc(sizeof(*sub_res), 8); + if (!sub_res) + panic("%s: Failed to allocate %zu bytes align=0x%x\n", + __func__, sizeof(*sub_res), 8); *sub_res = *std_res; sub_res->end = res->end; std_res->start = res->end + 1; @@ -966,6 +979,9 @@ static void __init setup_randomness(void) vmms = (struct sysinfo_3_2_2 *) memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE); + if (!vmms) + panic("Failed to allocate memory for sysinfo structure\n"); + if (stsi(vmms, 3, 2, 2) == 0 && vmms->count) add_device_randomness(&vmms->vm, sizeof(vmms->vm[0]) * vmms->count); memblock_free((unsigned long) vmms, PAGE_SIZE); |