[S390] smp: fix memory leak on __cpu_up

If sigp_set_prefix fails on __cpu_up we leak the lowcore structures
and async+panic stacks for the failed cpu.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index 690e17819686..89b2e7f1b7a9 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -144,7 +144,6 @@ out:
         return -ENOMEM;
 }
 
-#ifdef CONFIG_HOTPLUG_CPU
 void vdso_free_per_cpu(int cpu, struct _lowcore *lowcore)
 {
         unsigned long segment_table, page_table, page_frame;
@@ -163,7 +162,6 @@ void vdso_free_per_cpu(int cpu, struct _lowcore *lowcore)
         free_page(page_table);
         free_pages(segment_table, SEGMENT_ORDER);
 }
-#endif /* CONFIG_HOTPLUG_CPU */
 
 static void __vdso_init_cr5(void *dummy)
 {