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(parent: 46b635b) | patch
s390/cio: return -EFAULT if copy_to_user() fails
authorWang Qing <wangqing@vivo.com>
Mon, 1 Mar 2021 12:01:33 +0000 (20:01 +0800)
committerHeiko Carstens <hca@linux.ibm.com>
Mon, 8 Mar 2021 09:46:29 +0000 (10:46 +0100)
commit51c44babdc19aaf882e1213325a0ba291573308f
treee672a65cdca9dc3cfa5bdb5ece9dbf63e58afa00tree | snapshot
parent46b635b6abcf2ee106d36f2e84e942f56030c8f5commit | diff
s390/cio: return -EFAULT if copy_to_user() fails

The copy_to_user() function returns the number of bytes remaining to be
copied, but we want to return -EFAULT if the copy doesn't complete.

Fixes: e01bcdd61320 ("vfio: ccw: realize VFIO_DEVICE_GET_REGION_INFO ioctl")
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/r/1614600093-13992-1-git-send-email-wangqing@vivo.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
drivers/s390/cio/vfio_ccw_ops.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git