Return type of wait_for_completion_timeout is unsigned long not int.
An appropriately named unsigned long is added and the assignments fixed up.

Signed-off-by: Nicholas Mc Guire <hof...@osadl.org>
---

While at it the missing spaces 3*HZ -> 3 * HZ were added as well (should
this be in a separate patch ?)

Patch was only compile tested with x86_64_defconfig + CONFIG_ATH_CARDS=m,
CONFIG_ATH10K=m

Patch is against 4.0-rc3 (localversion-next is -next-20150311)

 drivers/net/wireless/ath/ath10k/mac.c |   35 +++++++++++++++++++--------------
 1 file changed, 20 insertions(+), 15 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c 
b/drivers/net/wireless/ath/ath10k/mac.c
index e8cc19f..7db8b81 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -98,6 +98,7 @@ static int ath10k_install_key(struct ath10k_vif *arvif,
                              const u8 *macaddr, bool def_idx)
 {
        struct ath10k *ar = arvif->ar;
+       unsigned long time_left;
        int ret;
 
        lockdep_assert_held(&ar->conf_mutex);
@@ -108,8 +109,8 @@ static int ath10k_install_key(struct ath10k_vif *arvif,
        if (ret)
                return ret;
 
-       ret = wait_for_completion_timeout(&ar->install_key_done, 3*HZ);
-       if (ret == 0)
+       time_left = wait_for_completion_timeout(&ar->install_key_done, 3 * HZ);
+       if (!time_left)
                return -ETIMEDOUT;
 
        return 0;
@@ -561,16 +562,16 @@ static void ath10k_mac_vif_beacon_cleanup(struct 
ath10k_vif *arvif)
 
 static inline int ath10k_vdev_setup_sync(struct ath10k *ar)
 {
-       int ret;
+       unsigned long time_left;
 
        lockdep_assert_held(&ar->conf_mutex);
 
        if (test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags))
                return -ESHUTDOWN;
 
-       ret = wait_for_completion_timeout(&ar->vdev_setup_done,
+       time_left = wait_for_completion_timeout(&ar->vdev_setup_done,
                                                ATH10K_VDEV_SETUP_TIMEOUT_HZ);
-       if (ret == 0)
+       if (!time_left)
                return -ETIMEDOUT;
 
        return 0;
@@ -2432,6 +2433,7 @@ void ath10k_offchan_tx_work(struct work_struct *work)
        const u8 *peer_addr;
        int vdev_id;
        int ret;
+       unsigned long time_left;
 
        /* FW requirement: We must create a peer before FW will send out
         * an offchannel frame. Otherwise the frame will be stuck and
@@ -2477,9 +2479,9 @@ void ath10k_offchan_tx_work(struct work_struct *work)
 
                ath10k_tx_htt(ar, skb);
 
-               ret = wait_for_completion_timeout(&ar->offchan_tx_completed,
-                                                 3 * HZ);
-               if (ret == 0)
+               time_left = wait_for_completion_timeout(
+                                       &ar->offchan_tx_completed, 3 * HZ);
+               if (!time_left)
                        ath10k_warn(ar, "timed out waiting for offchannel skb 
%p\n",
                                    skb);
 
@@ -2573,6 +2575,7 @@ static int ath10k_scan_stop(struct ath10k *ar)
                .u.scan_id = ATH10K_SCAN_ID,
        };
        int ret;
+       unsigned long time_left;
 
        lockdep_assert_held(&ar->conf_mutex);
 
@@ -2582,11 +2585,11 @@ static int ath10k_scan_stop(struct ath10k *ar)
                goto out;
        }
 
-       ret = wait_for_completion_timeout(&ar->scan.completed, 3*HZ);
-       if (ret == 0) {
+       time_left = wait_for_completion_timeout(&ar->scan.completed, 3 * HZ);
+       if (!time_left) {
                ath10k_warn(ar, "failed to receive scan abortion completion: 
timed out\n");
                ret = -ETIMEDOUT;
-       } else if (ret > 0) {
+       } else if (time_left > 0) {
                ret = 0;
        }
 
@@ -2655,6 +2658,7 @@ static int ath10k_start_scan(struct ath10k *ar,
                             const struct wmi_start_scan_arg *arg)
 {
        int ret;
+       unsigned long time_left;
 
        lockdep_assert_held(&ar->conf_mutex);
 
@@ -2662,8 +2666,8 @@ static int ath10k_start_scan(struct ath10k *ar,
        if (ret)
                return ret;
 
-       ret = wait_for_completion_timeout(&ar->scan.started, 1*HZ);
-       if (ret == 0) {
+       time_left = wait_for_completion_timeout(&ar->scan.started, 1 * HZ);
+       if (!time_left) {
                ret = ath10k_scan_stop(ar);
                if (ret)
                        ath10k_warn(ar, "failed to stop scan: %d\n", ret);
@@ -4355,6 +4359,7 @@ static int ath10k_remain_on_channel(struct ieee80211_hw 
*hw,
        struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
        struct wmi_start_scan_arg arg;
        int ret = 0;
+       unsigned long time_left;
 
        mutex_lock(&ar->conf_mutex);
 
@@ -4404,8 +4409,8 @@ static int ath10k_remain_on_channel(struct ieee80211_hw 
*hw,
                goto exit;
        }
 
-       ret = wait_for_completion_timeout(&ar->scan.on_channel, 3*HZ);
-       if (ret == 0) {
+       time_left = wait_for_completion_timeout(&ar->scan.on_channel, 3 * HZ);
+       if (!time_left) {
                ath10k_warn(ar, "failed to switch to channel for roc scan\n");
 
                ret = ath10k_scan_stop(ar);
-- 
1.7.10.4

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