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| author |   David Brownell <david-b@pacbell.net> | 2008-07-01 13:18:20 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2008-07-21 15:16:48 -0700 |
| commit | ac90e36592ea5171c4e70f58b39a782d871a7d9f (patch) | |
| tree | 00cb3eb55e6fa3e08d82b181b07c580260484c2b /drivers/usb/gadget/u_serial.c | |
| parent | usb gadget: minor USBCV fix for composite framework (diff) | |
| download | linux-dev-ac90e36592ea5171c4e70f58b39a782d871a7d9f.tar.xz linux-dev-ac90e36592ea5171c4e70f58b39a782d871a7d9f.zip | |
usb_gadget: composite cdc gadget fault handling
These two fixes ensure the new "CDC Composite Device" gadget
fails cleanly when it's loaded on hardware that can't support
this particular gadget driver.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to '')
| -rw-r--r-- | drivers/usb/gadget/u_serial.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c index 88d4f5452c49..abf9505d3a75 100644 --- a/drivers/usb/gadget/u_serial.c +++ b/drivers/usb/gadget/u_serial.c @@ -1090,6 +1090,9 @@ void gserial_cleanup(void) unsigned i; struct gs_port *port; + if (!gs_tty_driver) + return; + /* start sysfs and /dev/ttyGS* node removal */ for (i = 0; i < n_ports; i++) tty_unregister_device(gs_tty_driver, i); |