s390/crash: remove redundant panic() on save area allocation failure

Make save_area_alloc() return classic NULL on allocation failure.
The only caller smp_save_dump_cpus() does check the return value
already and panics if NULL is returned.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index 28124d0fa1d5e8839dc9a776f6739ca6b81950fb..117f13b3d1539ccb5cb4467125eaa85774f1d308 100644 (file)
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -63,7 +63,7 @@ struct save_area * __init save_area_alloc(bool is_boot_cpu)
 
        sa = memblock_alloc(sizeof(*sa), 8);
        if (!sa)
-               panic("Failed to allocate save area\n");
+               return NULL;
 
        if (is_boot_cpu)
                list_add(&sa->list, &dump_save_areas);