diff options
| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-03-10 18:03:20 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-03-10 18:03:20 -0700 |
| commit | aeb24d2fb08653a39abb50281b1ffa2d2a6879ab (patch) | |
| tree | d7fe503eb64ff1d9b76bf34095819f631a39b660 /drivers/lguest/lguest_user.c | |
| parent | 5c0dea0959356d77d985ecfb2911e7a9e23b95e3 (diff) | |
| parent | 1ef36fa64e65079de18ff5179a51af58e44d49a6 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
lguest: Do not append space to guests kernel command line
lguest: Revert 1ce70c4fac3c3954bd48c035f448793867592bc0, fix real problem.
lguest: Sanitize the lguest clock.
lguest: fix __get_vm_area usage.
lguest: make sure cpu is initialized before accessing it
Diffstat (limited to 'drivers/lguest/lguest_user.c')
| -rw-r--r-- | drivers/lguest/lguest_user.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c index 85d42d3d01a..2221485b077 100644 --- a/drivers/lguest/lguest_user.c +++ b/drivers/lguest/lguest_user.c @@ -241,15 +241,16 @@ static ssize_t write(struct file *file, const char __user *in, cpu = &lg->cpus[cpu_id]; if (!cpu) return -EINVAL; - } - /* Once the Guest is dead, all you can do is read() why it died. */ - if (lg && lg->dead) - return -ENOENT; + /* Once the Guest is dead, you can only read() why it died. */ + if (lg->dead) + return -ENOENT; - /* If you're not the task which owns the Guest, you can only break */ - if (lg && current != cpu->tsk && req != LHREQ_BREAK) - return -EPERM; + /* If you're not the task which owns the Guest, all you can do + * is break the Launcher out of running the Guest. */ + if (current != cpu->tsk && req != LHREQ_BREAK) + return -EPERM; + } switch (req) { case LHREQ_INITIALIZE: |