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path: root/drivers/input/tablet/wacom_sys.c
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Diffstat (limited to 'drivers/input/tablet/wacom_sys.c')
-rw-r--r--drivers/input/tablet/wacom_sys.c23
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)
103static int wacom_open(struct input_dev *dev) 103static 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
121out:
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
129static void wacom_close(struct input_dev *dev) 128static 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
140static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hid_desc, 141static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hid_desc,