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-rw-r--r--arch/ppc64/xmon/start.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/ppc64/xmon/start.c b/arch/ppc64/xmon/start.c
index f86b584acd7..e50c158191e 100644
--- a/arch/ppc64/xmon/start.c
+++ b/arch/ppc64/xmon/start.c
@@ -61,7 +61,9 @@ xmon_read(void *handle, void *ptr, int nb)
int
xmon_read_poll(void)
{
- return udbg_getc_poll();
+ if (udbg_getc_poll)
+ return udbg_getc_poll();
+ return -1;
}
FILE *xmon_stdin;