Commit e9f1b369 authored by Roger Pau Monne's avatar Roger Pau Monne

libxc: add comment to why NetBSD return hypercall->retval

Added a comment that explains why NetBSD return hypercall->retval on
Signed-off-by: default avatarRoger Pau Monne <>
Acked-by: Ian Campbell <>
Committed-by: Ian Jackson <>
Reported-by: default avatarOlaf Hering <>
parent 1d2ce98f
......@@ -96,6 +96,12 @@ static int netbsd_privcmd_hypercall(xc_interface *xch, xc_osdep_handle h, privcm
int fd = (int)h;
int error = ioctl(fd, IOCTL_PRIVCMD_HYPERCALL, hypercall);
* Since NetBSD ioctl can only return 0 on success or < 0 on
* error, if we want to return a value from ioctl we should
* do so by setting hypercall->retval, to mimic Linux ioctl
* implementation.
if (error < 0)
return -errno;
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment