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

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

diff --git a/drivers/usb/misc/cypress_cy7c63.c b/drivers/usb/misc/cypress_cy7c63.c
index 9c46746..b63b5f3 100644 (file)
--- a/drivers/usb/misc/cypress_cy7c63.c
+++ b/drivers/usb/misc/cypress_cy7c63.c
@@ -209,7 +209,7 @@ static int cypress_probe(struct usb_interface *interface,
        dev = kzalloc(sizeof(*dev), GFP_KERNEL);
        if (dev == NULL) {
                dev_err(&interface->dev, "Out of memory!\n");
-               goto error;
+               goto error_mem;
        }
 
        dev->udev = usb_get_dev(interface_to_usbdev(interface));
@@ -218,15 +218,26 @@ static int cypress_probe(struct usb_interface *interface,
        usb_set_intfdata(interface, dev);
 
        /* create device attribute files */
-       device_create_file(&interface->dev, &dev_attr_port0);
-       device_create_file(&interface->dev, &dev_attr_port1);
+       retval = device_create_file(&interface->dev, &dev_attr_port0);
+       if (retval)
+               goto error;
+       retval = device_create_file(&interface->dev, &dev_attr_port1);
+       if (retval)
+               goto error;
 
        /* let the user know that the device is now attached */
        dev_info(&interface->dev,
                 "Cypress CY7C63xxx device now attached\n");
+       return 0;
 
-       retval = 0;
 error:
+       device_remove_file(&interface->dev, &dev_attr_port0);
+       device_remove_file(&interface->dev, &dev_attr_port1);
+       usb_set_intfdata(interface, NULL);
+       usb_put_dev(dev->udev);
+       kfree(dev);
+
+error_mem:
        return retval;
 }
 

diff --git a/drivers/usb/misc/cytherm.c b/drivers/usb/misc/cytherm.c
index b20bec4..04e87ac 100644 (file)
--- a/drivers/usb/misc/cytherm.c
+++ b/drivers/usb/misc/cytherm.c
@@ -353,7 +353,7 @@ static int cytherm_probe(struct usb_interface *interface,
        dev = kzalloc (sizeof(struct usb_cytherm), GFP_KERNEL);
        if (dev == NULL) {
                dev_err (&interface->dev, "Out of memory\n");
-               goto error;
+               goto error_mem;
        }
 
        dev->udev = usb_get_dev(udev);
@@ -362,18 +362,35 @@ static int cytherm_probe(struct usb_interface *interface,
 
        dev->brightness = 0xFF;
 
-       device_create_file(&interface->dev, &dev_attr_brightness);   
-       device_create_file(&interface->dev, &dev_attr_temp);
-       device_create_file(&interface->dev, &dev_attr_button);
-       device_create_file(&interface->dev, &dev_attr_port0);
-       device_create_file(&interface->dev, &dev_attr_port1);
+       retval = device_create_file(&interface->dev, &dev_attr_brightness);
+       if (retval)
+               goto error;
+       retval = device_create_file(&interface->dev, &dev_attr_temp);
+       if (retval)
+               goto error;
+       retval = device_create_file(&interface->dev, &dev_attr_button);
+       if (retval)
+               goto error;
+       retval = device_create_file(&interface->dev, &dev_attr_port0);
+       if (retval)
+               goto error;
+       retval = device_create_file(&interface->dev, &dev_attr_port1);
+       if (retval)
+               goto error;
 
-       dev_info (&interface->dev, 
+       dev_info (&interface->dev,
                  "Cypress thermometer device now attached\n");
        return 0;
-
- error:
+error:
+       device_remove_file(&interface->dev, &dev_attr_brightness);
+       device_remove_file(&interface->dev, &dev_attr_temp);
+       device_remove_file(&interface->dev, &dev_attr_button);
+       device_remove_file(&interface->dev, &dev_attr_port0);
+       device_remove_file(&interface->dev, &dev_attr_port1);
+       usb_set_intfdata (interface, NULL);
+       usb_put_dev(dev->udev);
        kfree(dev);
+error_mem:
        return retval;
 }
 

diff --git a/drivers/usb/misc/usbled.c b/drivers/usb/misc/usbled.c
index 0c5ee0a..49c5c5c 100644 (file)
--- 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;
 }