Use the new "kill_proc_info_as_uid()" for USB disconnect too
All the same issues - we can't just save the pointer to the thread, we
must save the pid/uid/euid combination.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 6c35dcb..487ff67 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -530,7 +530,9 @@
INIT_LIST_HEAD(&ps->async_completed);
init_waitqueue_head(&ps->wait);
ps->discsignr = 0;
- ps->disctask = current;
+ ps->disc_pid = current->pid;
+ ps->disc_uid = current->uid;
+ ps->disc_euid = current->euid;
ps->disccontext = NULL;
ps->ifclaimed = 0;
wmb();
diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index 640f41e..d07bba0 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -713,7 +713,7 @@
sinfo.si_errno = EPIPE;
sinfo.si_code = SI_ASYNCIO;
sinfo.si_addr = ds->disccontext;
- send_sig_info(ds->discsignr, &sinfo, ds->disctask);
+ kill_proc_info_as_uid(ds->discsignr, &sinfo, ds->disc_pid, ds->disc_uid, ds->disc_euid);
}
}
usbfs_update_special();
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index 83d48c8..e6504f3 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -52,7 +52,8 @@
struct list_head async_completed;
wait_queue_head_t wait; /* wake up if a request completed */
unsigned int discsignr;
- struct task_struct *disctask;
+ pid_t disc_pid;
+ uid_t disc_uid, disc_euid;
void __user *disccontext;
unsigned long ifclaimed;
};