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-rw-r--r--drivers/s390/char/vmcp.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c
index 0fa1b6b1491a..9e066281e2d0 100644
--- a/drivers/s390/char/vmcp.c
+++ b/drivers/s390/char/vmcp.c
@@ -43,6 +43,8 @@ static struct cma *vmcp_cma;
static int __init early_parse_vmcp_cma(char *p)
{
+ if (!p)
+ return 1;
vmcp_cma_size = ALIGN(memparse(p, NULL), PAGE_SIZE);
return 0;
}