diff options
| -rw-r--r-- | drivers/input/tablet/wacom_sys.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index 42ba3691d908..b35876ee6908 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c | |||
| @@ -103,27 +103,26 @@ static void wacom_sys_irq(struct urb *urb) | |||
| 103 | static int wacom_open(struct input_dev *dev) | 103 | static int wacom_open(struct input_dev *dev) |
| 104 | { | 104 | { |
| 105 | struct wacom *wacom = input_get_drvdata(dev); | 105 | struct wacom *wacom = input_get_drvdata(dev); |
| 106 | int retval = 0; | ||
| 106 | 107 | ||
| 107 | mutex_lock(&wacom->lock); | 108 | if (usb_autopm_get_interface(wacom->intf) < 0) |
| 108 | |||
| 109 | wacom->irq->dev = wacom->usbdev; | ||
| 110 | |||
| 111 | if (usb_autopm_get_interface(wacom->intf) < 0) { | ||
| 112 | mutex_unlock(&wacom->lock); | ||
| 113 | return -EIO; | 109 | return -EIO; |
| 114 | } | 110 | |
| 111 | mutex_lock(&wacom->lock); | ||
| 115 | 112 | ||
| 116 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) { | 113 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) { |
| 117 | usb_autopm_put_interface(wacom->intf); | 114 | retval = -EIO; |
| 118 | mutex_unlock(&wacom->lock); | 115 | goto out; |
| 119 | return -EIO; | ||
| 120 | } | 116 | } |
| 121 | 117 | ||
| 122 | wacom->open = true; | 118 | wacom->open = true; |
| 123 | wacom->intf->needs_remote_wakeup = 1; | 119 | wacom->intf->needs_remote_wakeup = 1; |
| 124 | 120 | ||
| 121 | out: | ||
| 125 | mutex_unlock(&wacom->lock); | 122 | mutex_unlock(&wacom->lock); |
| 126 | return 0; | 123 | if (retval) |
| 124 | usb_autopm_put_interface(wacom->intf); | ||
| 125 | return retval; | ||
| 127 | } | 126 | } |
| 128 | 127 | ||
| 129 | static void wacom_close(struct input_dev *dev) | 128 | static void wacom_close(struct input_dev *dev) |
| @@ -135,6 +134,8 @@ static void wacom_close(struct input_dev *dev) | |||
| 135 | wacom->open = false; | 134 | wacom->open = false; |
| 136 | wacom->intf->needs_remote_wakeup = 0; | 135 | wacom->intf->needs_remote_wakeup = 0; |
| 137 | mutex_unlock(&wacom->lock); | 136 | mutex_unlock(&wacom->lock); |
| 137 | |||
| 138 | usb_autopm_put_interface(wacom->intf); | ||
| 138 | } | 139 | } |
| 139 | 140 | ||
| 140 | static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hid_desc, | 141 | static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hid_desc, |
