diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/gadget/f_accessory.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/gadget/f_accessory.c b/drivers/usb/gadget/f_accessory.c index 41c86ad64..717ef1811 100644 --- a/drivers/usb/gadget/f_accessory.c +++ b/drivers/usb/gadget/f_accessory.c @@ -962,6 +962,10 @@ kill_all_hid_devices(struct acc_dev *dev) struct list_head *entry, *temp; unsigned long flags; + /* do nothing if usb accessory device doesn't exist */ + if (!dev) + return; + spin_lock_irqsave(&dev->lock, flags); list_for_each_safe(entry, temp, &dev->hid_list) { hid = list_entry(entry, struct acc_hid_dev, list); |