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Reported by checkpatch. Signed-off-by: Ian To --- drivers/staging/comedi/comedi_fops.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/= comedi_fops.c index e85a99b68f31..3f70e5dfac39 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -2169,6 +2169,7 @@ static long comedi_unlocked_ioctl(struct file *file, = unsigned int cmd, break; case COMEDI_CHANINFO: { struct comedi_chaninfo it; + if (copy_from_user(&it, (void __user *)arg, sizeof(it))) rc =3D -EFAULT; else @@ -2177,6 +2178,7 @@ static long comedi_unlocked_ioctl(struct file *file, = unsigned int cmd, } case COMEDI_RANGEINFO: { struct comedi_rangeinfo it; + if (copy_from_user(&it, (void __user *)arg, sizeof(it))) rc =3D -EFAULT; else @@ -2249,6 +2251,7 @@ static long comedi_unlocked_ioctl(struct file *file, = unsigned int cmd, } case COMEDI_INSN: { struct comedi_insn insn; + if (copy_from_user(&insn, (void __user *)arg, sizeof(insn))) rc =3D -EFAULT; else --=20 2.45.3