1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index 5e3ef5522194..f43c2e04eadd 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -1649,6 +1649,8 @@ int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port)
         case MOXA_FIND_BOARD:
         case MOXA_LOAD_C320B:
         case MOXA_LOAD_CODE:
+                if (!capable(CAP_SYS_RAWIO))
+                        return -EPERM;
                 break;
         }