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[21/50] hid: usbhid: spin_lock in complete() cleanup

Message ID 1373533573-12272-22-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: Jiri Kosina <jkosina@suse.cz>
Cc: linux-input@vger.kernel.org
Signed-off-by: Ming Lei <ming.lei@canonical.com>
---
 drivers/hid/usbhid/hid-core.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 9941828..e1d8518 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -489,8 +489,9 @@  static void hid_ctrl(struct urb *urb)
 	struct hid_device *hid = urb->context;
 	struct usbhid_device *usbhid = hid->driver_data;
 	int unplug = 0, status = urb->status;
+	unsigned long flags;
 
-	spin_lock(&usbhid->lock);
+	spin_lock_irqsave(&usbhid->lock, flags);
 
 	switch (status) {
 	case 0:			/* success */
@@ -525,7 +526,7 @@  static void hid_ctrl(struct urb *urb)
 	}
 
 	clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
-	spin_unlock(&usbhid->lock);
+	spin_unlock_irqrestore(&usbhid->lock, flags);
 	usb_autopm_put_interface_async(usbhid->intf);
 	wake_up(&usbhid->wait);
 }