1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c
index 10ac58d0cddd..856d0ea6007f 100644
--- a/drivers/staging/comedi/drivers/vmk80xx.c
+++ b/drivers/staging/comedi/drivers/vmk80xx.c
@@ -1020,12 +1020,12 @@ static int vmk80xx_cnt_cinsn(struct comedi_device *cdev,
         if (n)
                 return n;
 
-        down(&dev->limit_sem);
-
         insn_cmd = data[0];
         if (insn_cmd != INSN_CONFIG_RESET && insn_cmd != GPCT_RESET)
                 return -EINVAL;
 
+        down(&dev->limit_sem);
+
         chan = CR_CHAN(insn->chanspec);
 
         if (dev->board.model == VMK8055_MODEL) {