Commit 49f3cfae authored Mar 01, 2021 by Eric Farman Committed by Greg Kroah-Hartman Mar 17, 2021

s390/cio: return -EFAULT if copy_to_user() fails



commit d9c48a948d29bcb22f4fe61a81b718ef6de561a0 upstream.

Fixes: 120e214e ("vfio: ccw: realize VFIO_DEVICE_G(S)ET_IRQ_INFO ioctls")
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 8fbbf2b3

drivers/s390/cio/vfio_ccw_ops.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -383,7 +383,7 @@ static ssize_t vfio_ccw_mdev_ioctl(struct mdev_device *mdev,
		if (info.count == -1)
		return -EINVAL;

		return copy_to_user((void __user *)arg, &info, minsz);
		return copy_to_user((void __user *)arg, &info, minsz) ? -EFAULT : 0;
		}
		case VFIO_DEVICE_SET_IRQS:
		{