mirror of
https://github.com/torvalds/linux.git
synced 2024-10-25 22:44:30 +00:00
Xen/gntdev: don't ignore kernel unmapping error
While working on XSA-361 and its follow-ups, I failed to spot another place where the kernel mapping part of an operation was not treated the same as the user space part. Detect and propagate errors and add a 2nd pr_debug(). Signed-off-by: Jan Beulich <jbeulich@suse.com> Reviewed-by: Juergen Gross <jgross@suse.com> Link: https://lore.kernel.org/r/c2513395-74dc-aea3-9192-fd265aa44e35@suse.com Signed-off-by: Juergen Gross <jgross@suse.com>
This commit is contained in:
parent
4403f8062a
commit
f28347cc66
|
@ -381,6 +381,14 @@ static int __unmap_grant_pages(struct gntdev_grant_map *map, int offset,
|
|||
map->unmap_ops[offset+i].handle,
|
||||
map->unmap_ops[offset+i].status);
|
||||
map->unmap_ops[offset+i].handle = INVALID_GRANT_HANDLE;
|
||||
if (use_ptemod) {
|
||||
if (map->kunmap_ops[offset+i].status)
|
||||
err = -EINVAL;
|
||||
pr_debug("kunmap handle=%u st=%d\n",
|
||||
map->kunmap_ops[offset+i].handle,
|
||||
map->kunmap_ops[offset+i].status);
|
||||
map->kunmap_ops[offset+i].handle = INVALID_GRANT_HANDLE;
|
||||
}
|
||||
}
|
||||
return err;
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue
Block a user