[PATCH 37/93] brcmsmac: increase timer reference count for new timers only

[Herton Ronaldo Krzesinski]

3.5.7.5 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Piotr Haber <phaber@xxxxxxxxxxxx>

commit a1fe52801a992e590cdaee2fb47a94bac9b5da90 upstream.

On hardware reintialization reference count of
already existing timers would be increased again.
This leads to problems on module unloading.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@xxxxxxxxxxxx>
Reviewed-by: Hante Meuleman <meuleman@xxxxxxxxxxxx>
Reviewed-by: Arend van Spriel <arend@xxxxxxxxxxxx>
Signed-off-by: Piotr Haber <phaber@xxxxxxxxxxxx>
Signed-off-by: Arend van Spriel <arend@xxxxxxxxxxxx>
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@xxxxxxxxxxxxx>
---
 .../net/wireless/brcm80211/brcmsmac/mac80211_if.c  |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c b/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c
index 50f92a0..24f35f6 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c
@@ -1395,9 +1395,10 @@ void brcms_add_timer(struct brcms_timer *t, uint ms, int periodic)
 #endif
 	t->ms = ms;
 	t->periodic = (bool) periodic;
-	t->set = true;
-
-	atomic_inc(&t->wl->callbacks);
+	if (!t->set) {
+		t->set = true;
+		atomic_inc(&t->wl->callbacks);
+	}
 
 	ieee80211_queue_delayed_work(hw, &t->dly_wrk, msecs_to_jiffies(ms));
 }
-- 
1.7.9.5

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