From: David Herrmann <dh.herrmann@gmail.com>
Date: Sat, 6 Apr 2013 18:28:41 +0000 (+0200)
Subject: Bluetooth: hidp: test "terminate" before sleeping
X-Git-Tag: v3.10-rc2~34^2~21^2^2~18^2~28
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e3492dc3760ceb981a0bb9992c249ba151b6f61d;p=profile%2Fcommon%2Fkernel-common.git

Bluetooth: hidp: test "terminate" before sleeping

The "terminate" flag is guaranteed to be set before the session terminates
and the handlers are woken up. Hence, we need to add it to the
sleep-condition.

Note that testing the flags is not enough as nothing prevents us from
setting the flags again after the session-handler terminated.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---

diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index 22e9ab1..e01a924 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -330,11 +330,13 @@ static int hidp_get_raw_report(struct hid_device *hid,
 
 	/* Wait for the return of the report. The returned report
 	   gets put in session->report_return.  */
-	while (test_bit(HIDP_WAITING_FOR_RETURN, &session->flags)) {
+	while (test_bit(HIDP_WAITING_FOR_RETURN, &session->flags) &&
+	       !atomic_read(&session->terminate)) {
 		int res;
 
 		res = wait_event_interruptible_timeout(session->report_queue,
-			!test_bit(HIDP_WAITING_FOR_RETURN, &session->flags),
+			!test_bit(HIDP_WAITING_FOR_RETURN, &session->flags)
+				|| atomic_read(&session->terminate),
 			5*HZ);
 		if (res == 0) {
 			/* timeout */
@@ -399,11 +401,13 @@ static int hidp_output_raw_report(struct hid_device *hid, unsigned char *data, s
 		goto err;
 
 	/* Wait for the ACK from the device. */
-	while (test_bit(HIDP_WAITING_FOR_SEND_ACK, &session->flags)) {
+	while (test_bit(HIDP_WAITING_FOR_SEND_ACK, &session->flags) &&
+	       !atomic_read(&session->terminate)) {
 		int res;
 
 		res = wait_event_interruptible_timeout(session->report_queue,
-			!test_bit(HIDP_WAITING_FOR_SEND_ACK, &session->flags),
+			!test_bit(HIDP_WAITING_FOR_SEND_ACK, &session->flags)
+				|| atomic_read(&session->terminate),
 			10*HZ);
 		if (res == 0) {
 			/* timeout */