USB: fix __must_check warnings in drivers/usb/misc/

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 16 insertions, 4 deletions

diff --git a/drivers/usb/misc/usbled.c b/drivers/usb/misc/usbled.c
index 0c5ee0ad6bb9..49c5c5c4c431 100644
--- a/drivers/usb/misc/usbled.c
+++ b/drivers/usb/misc/usbled.c
@@ -108,22 +108,34 @@ static int led_probe(struct usb_interface *interface, const struct usb_device_id
         dev = kzalloc(sizeof(struct usb_led), GFP_KERNEL);
         if (dev == NULL) {
                 dev_err(&interface->dev, "Out of memory\n");
-                goto error;
+                goto error_mem;
         }
 
         dev->udev = usb_get_dev(udev);
 
         usb_set_intfdata (interface, dev);
 
-        device_create_file(&interface->dev, &dev_attr_blue);
-        device_create_file(&interface->dev, &dev_attr_red);
-        device_create_file(&interface->dev, &dev_attr_green);
+        retval = device_create_file(&interface->dev, &dev_attr_blue);
+        if (retval)
+                goto error;
+        retval = device_create_file(&interface->dev, &dev_attr_red);
+        if (retval)
+                goto error;
+        retval = device_create_file(&interface->dev, &dev_attr_green);
+        if (retval)
+                goto error;
 
         dev_info(&interface->dev, "USB LED device now attached\n");
         return 0;
 
 error:
+        device_remove_file(&interface->dev, &dev_attr_blue);
+        device_remove_file(&interface->dev, &dev_attr_red);
+        device_remove_file(&interface->dev, &dev_attr_green);
+        usb_set_intfdata (interface, NULL);
+        usb_put_dev(dev->udev);
         kfree(dev);
+error_mem:
         return retval;
 }