Input: cm109 - spin_lock in complete() cleanup

Complete() will be run with interrupt enabled, so change to
spin_lock_irqsave().

Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/input/misc/cm109.c b/drivers/input/misc/cm109.c
index ee1bedd7c54c..9cc6d057c302 100644
--- a/drivers/input/misc/cm109.c
+++ b/drivers/input/misc/cm109.c
@@ -366,6 +366,7 @@ static void cm109_urb_irq_callback(struct urb *urb)
         struct cm109_dev *dev = urb->context;
         const int status = urb->status;
         int error;
+        unsigned long flags;
 
         dev_dbg(&dev->intf->dev, "### URB IRQ: [0x%02x 0x%02x 0x%02x 0x%02x] keybit=0x%02x\n",
              dev->irq_data->byte[0],
@@ -404,7 +405,7 @@ static void cm109_urb_irq_callback(struct urb *urb)
 
  out:
 
-        spin_lock(&dev->ctl_submit_lock);
+        spin_lock_irqsave(&dev->ctl_submit_lock, flags);
 
         dev->irq_urb_pending = 0;
 
@@ -428,7 +429,7 @@ static void cm109_urb_irq_callback(struct urb *urb)
                                 __func__, error);
         }
 
-        spin_unlock(&dev->ctl_submit_lock);
+        spin_unlock_irqrestore(&dev->ctl_submit_lock, flags);
 }
 
 static void cm109_urb_ctl_callback(struct urb *urb)
@@ -436,6 +437,7 @@ static void cm109_urb_ctl_callback(struct urb *urb)
         struct cm109_dev *dev = urb->context;
         const int status = urb->status;
         int error;
+        unsigned long flags;
 
         dev_dbg(&dev->intf->dev, "### URB CTL: [0x%02x 0x%02x 0x%02x 0x%02x]\n",
              dev->ctl_data->byte[0],
@@ -450,7 +452,7 @@ static void cm109_urb_ctl_callback(struct urb *urb)
                                     __func__, status);
         }
 
-        spin_lock(&dev->ctl_submit_lock);
+        spin_lock_irqsave(&dev->ctl_submit_lock, flags);
 
         dev->ctl_urb_pending = 0;
 
@@ -471,7 +473,7 @@ static void cm109_urb_ctl_callback(struct urb *urb)
                 }
         }
 
-        spin_unlock(&dev->ctl_submit_lock);
+        spin_unlock_irqrestore(&dev->ctl_submit_lock, flags);
 }
 
 static void cm109_toggle_buzzer_async(struct cm109_dev *dev)