Revert "Staging: comedi: integer overflow in do_insnlist_ioctl()"

This reverts commit e384a41141949843899affcf51f4e6e646c1fe9f.
It's not the correct way to solve this issue.

Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index ed4853f..ebdcecd 100644 (file)
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -670,11 +670,6 @@ static int do_insnlist_ioctl(struct comedi_device *dev,
                goto error;
        }
 
-       if (sizeof(struct comedi_insn) * insnlist.n_insns < insnlist.n_insns) {
-               ret = -EINVAL;
-               goto error;
-       }
-
        insns =
            kmalloc(sizeof(struct comedi_insn) * insnlist.n_insns, GFP_KERNEL);
        if (!insns) {