Input: USB devices - handle errors when registering input devices

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 9 insertions, 4 deletions

diff --git a/drivers/usb/input/kbtab.c b/drivers/usb/input/kbtab.c
index fedbcb127c21..64da9876fe56 100644
--- a/drivers/usb/input/kbtab.c
+++ b/drivers/usb/input/kbtab.c
@@ -122,6 +122,7 @@ static int kbtab_probe(struct usb_interface *intf, const struct usb_device_id *i
         struct usb_endpoint_descriptor *endpoint;
         struct kbtab *kbtab;
         struct input_dev *input_dev;
+        int error = -ENOMEM;
 
         kbtab = kzalloc(sizeof(struct kbtab), GFP_KERNEL);
         input_dev = input_allocate_device();
@@ -168,15 +169,19 @@ static int kbtab_probe(struct usb_interface *intf, const struct usb_device_id *i
         kbtab->irq->transfer_dma = kbtab->data_dma;
         kbtab->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 
-        input_register_device(kbtab->dev);
+        error = input_register_device(kbtab->dev);
+        if (error)
+                goto fail3;
 
         usb_set_intfdata(intf, kbtab);
+
         return 0;
 
-fail2:  usb_buffer_free(dev, 10, kbtab->data, kbtab->data_dma);
-fail1:  input_free_device(input_dev);
+ fail3: usb_free_urb(kbtab->irq);
+ fail2: usb_buffer_free(dev, 10, kbtab->data, kbtab->data_dma);
+ fail1: input_free_device(input_dev);
         kfree(kbtab);
-        return -ENOMEM;
+        return error;
 }
 
 static void kbtab_disconnect(struct usb_interface *intf)