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| author | Eric Farman <farman@linux.ibm.com> | 2021-03-01 19:33:24 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2021-03-08 10:46:30 +0100 |
| commit | d9c48a948d29bcb22f4fe61a81b718ef6de561a0 (patch) | |
| tree | f04d4d6b8b7f81ec5dcc698b1da357725348cbb4 /drivers/s390 | |
| parent | db232eb42c21b7bca8e46c7e74676754b8fe06ea (diff) | |
| download | linux-d9c48a948d29bcb22f4fe61a81b718ef6de561a0.tar.bz2 | |
s390/cio: return -EFAULT if copy_to_user() fails
Fixes: 120e214e504f ("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>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/cio/vfio_ccw_ops.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c index 557d0b888cd3..767ac41686fe 100644 --- a/drivers/s390/cio/vfio_ccw_ops.c +++ b/drivers/s390/cio/vfio_ccw_ops.c @@ -582,7 +582,7 @@ 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: { |