[S390] zfcpdump: Do not initialize zfcpdump in kdump mode

When the kernel is started in kdump mode, zfcpdump should not be
initialized because both dump methods can't be used at the same time.

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

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
index 43068fbd0baa..1b6d9247fdc7 100644
--- a/drivers/s390/char/zcore.c
+++ b/drivers/s390/char/zcore.c
@@ -641,6 +641,8 @@ static int __init zcore_init(void)
 
         if (ipl_info.type != IPL_TYPE_FCP_DUMP)
                 return -ENODATA;
+        if (OLDMEM_BASE)
+                return -ENODATA;
 
         zcore_dbf = debug_register("zcore", 4, 1, 4 * sizeof(long));
         debug_register_view(zcore_dbf, &debug_sprintf_view);