s390: remove superfluous memblock_alloc() return value checks

memblock_alloc() and memblock_alloc_base() will panic on their own if
they can't find free memory. Therefore remove some pointless checks.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

3 files changed, 0 insertions, 6 deletions

diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index a92b39fd0e63..3986c9f62191 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -59,8 +59,6 @@ struct save_area * __init save_area_alloc(bool is_boot_cpu)
         struct save_area *sa;
 
         sa = (void *) memblock_alloc(sizeof(*sa), 8);
-        if (!sa)
-                return NULL;
         if (is_boot_cpu)
                 list_add(&sa->list, &dump_save_areas);
         else
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index a13468b9a913..3c65a8eae34d 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -623,8 +623,6 @@ void __init smp_save_dump_cpus(void)
                 return;
         /* Allocate a page as dumping area for the store status sigps */
         page = memblock_alloc_base(PAGE_SIZE, PAGE_SIZE, 1UL << 31);
-        if (!page)
-                panic("could not allocate memory for save area\n");
         /* Set multi-threading state to the previous system. */
         pcpu_set_smt(sclp.mtid_prev);
         boot_cpu_addr = stap();
diff --git a/arch/s390/numa/numa.c b/arch/s390/numa/numa.c
index b75ac43060e1..969b4ed4ed5e 100644
--- a/arch/s390/numa/numa.c
+++ b/arch/s390/numa/numa.c
@@ -58,8 +58,6 @@ static __init pg_data_t *alloc_node_data(void)
         pg_data_t *res;
 
         res = (pg_data_t *) memblock_alloc(sizeof(pg_data_t), 8);
-        if (!res)
-                panic("Could not allocate memory for node data!\n");
         memset(res, 0, sizeof(pg_data_t));
         return res;
 }