diff mbox

[04/50] USB: adutux: spin_lock in complete() cleanup

Message ID 1373533573-12272-5-git-send-email-ming.lei@canonical.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ming Lei July 11, 2013, 9:05 a.m. UTC 
Complete() will be run with interrupt enabled, so change to
spin_lock_irqsave().

Cc: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
---
 drivers/usb/misc/adutux.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)
diff mbox

Patch

diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index eb3c8c1..387c75e 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -195,12 +195,13 @@  static void adu_interrupt_in_callback(struct urb *urb)
 {
 	struct adu_device *dev = urb->context;
 	int status = urb->status;
+	unsigned long flags;
 
 	dbg(4, " %s : enter, status %d", __func__, status);
 	adu_debug_data(5, __func__, urb->actual_length,
 		       urb->transfer_buffer);
 
-	spin_lock(&dev->buflock);
+	spin_lock_irqsave(&dev->buflock, flags);
 
 	if (status != 0) {
 		if ((status != -ENOENT) && (status != -ECONNRESET) &&
@@ -229,7 +230,7 @@  static void adu_interrupt_in_callback(struct urb *urb)
 
 exit:
 	dev->read_urb_finished = 1;
-	spin_unlock(&dev->buflock);
+	spin_unlock_irqrestore(&dev->buflock, flags);
 	/* always wake up so we recover from errors */
 	wake_up_interruptible(&dev->read_wait);
 	adu_debug_data(5, __func__, urb->actual_length,
@@ -241,6 +242,7 @@  static void adu_interrupt_out_callback(struct urb *urb)
 {
 	struct adu_device *dev = urb->context;
 	int status = urb->status;
+	unsigned long flags;
 
 	dbg(4, " %s : enter, status %d", __func__, status);
 	adu_debug_data(5, __func__, urb->actual_length, urb->transfer_buffer);
@@ -254,10 +256,10 @@  static void adu_interrupt_out_callback(struct urb *urb)
 		goto exit;
 	}
 
-	spin_lock(&dev->buflock);
+	spin_lock_irqsave(&dev->buflock, flags);
 	dev->out_urb_finished = 1;
 	wake_up(&dev->write_wait);
-	spin_unlock(&dev->buflock);
+	spin_unlock_irqrestore(&dev->buflock, flags);
 exit:
 
 	adu_debug_data(5, __func__, urb->actual_length,