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-rw-r--r--drivers/comedi/comedi_fops.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/comedi/comedi_fops.c b/drivers/comedi/comedi_fops.c
index 1548dea15df1..1b481731df96 100644
--- a/drivers/comedi/comedi_fops.c
+++ b/drivers/comedi/comedi_fops.c
@@ -1714,8 +1714,8 @@ static int __comedi_get_user_chanlist(struct comedi_device *dev,
lockdep_assert_held(&dev->mutex);
cmd->chanlist = NULL;
- chanlist = memdup_user(user_chanlist,
- cmd->chanlist_len * sizeof(unsigned int));
+ chanlist = memdup_array_user(user_chanlist,
+ cmd->chanlist_len, sizeof(unsigned int));
if (IS_ERR(chanlist))
return PTR_ERR(chanlist);