diff options
| author |   Oliver Neukum <oliver@neukum.org> | 2008-01-16 17:18:52 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2008-02-01 14:35:03 -0800 |
| commit | a1cd7e99b343543af2be4c8c5755e26f6bfd725a (patch) | |
| tree | 41f8de097dd0889a9c6d02fa0a22b16d5146de46 /include | |
| parent | USB: add support for SuperH OHCI (diff) | |
| download | linux-dev-a1cd7e99b343543af2be4c8c5755e26f6bfd725a.tar.xz linux-dev-a1cd7e99b343543af2be4c8c5755e26f6bfd725a.zip | |
USB: stop io performed by mos7720 upon close()
This fixes a problem where the mos7720 driver will make io to a device from
which it has been logically disconnected. It does so by introducing a flag by
which the generic usb serial code can signal the subdrivers their
disconnection and appropriate locking.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb/serial.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index ef1e430f7bfa..63b29b5332e6 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -129,6 +129,7 @@ struct usb_serial { struct usb_device * dev; struct usb_serial_driver * type; struct usb_interface * interface; + unsigned char disconnected; unsigned char minor; unsigned char num_ports; unsigned char num_port_pointers; @@ -138,6 +139,7 @@ struct usb_serial { char num_bulk_out; struct usb_serial_port * port[MAX_NUM_PORTS]; struct kref kref; + struct mutex disc_mutex; void * private; }; #define to_usb_serial(d) container_of(d, struct usb_serial, kref) |