This fixes the template upload locking.
Signed-off-by: Michael Buesch <mb@xxxxxxxxx>
---
John, this is 2.6.25 stuff.
Index: wireless-2.6/drivers/net/wireless/b43/main.c
===================================================================
--- wireless-2.6.orig/drivers/net/wireless/b43/main.c 2007-12-26 17:57:08.000000000 +0100
+++ wireless-2.6/drivers/net/wireless/b43/main.c 2007-12-26 18:01:03.000000000 +0100
@@ -1303,26 +1303,21 @@ static void b43_write_probe_resp_templat
kfree(probe_resp_data);
}
-/* Asynchronously update the packet templates in template RAM. */
+/* Asynchronously update the packet templates in template RAM.
+ * Locking: Requires wl->irq_lock to be locked. */
static void b43_update_templates(struct b43_wl *wl, struct sk_buff *beacon)
{
- unsigned long flags;
-
/* This is the top half of the ansynchronous beacon update.
* The bottom half is the beacon IRQ.
* Beacon update must be asynchronous to avoid sending an
* invalid beacon. This can happen for example, if the firmware
* transmits a beacon while we are updating it. */
- spin_lock_irqsave(&wl->irq_lock, flags);
-
if (wl->current_beacon)
dev_kfree_skb_any(wl->current_beacon);
wl->current_beacon = beacon;
wl->beacon0_uploaded = 0;
wl->beacon1_uploaded = 0;
-
- spin_unlock_irqrestore(&wl->irq_lock, flags);
}
static void b43_set_ssid(struct b43_wldev *dev, const u8 * ssid, u8 ssid_len)
@@ -3587,6 +3582,7 @@ static int b43_op_beacon_set_tim(struct
{
struct b43_wl *wl = hw_to_b43_wl(hw);
struct sk_buff *beacon;
+ unsigned long flags;
/* We could modify the existing beacon and set the aid bit in
* the TIM field, but that would probably require resizing and
@@ -3595,7 +3591,9 @@ static int b43_op_beacon_set_tim(struct
beacon = ieee80211_beacon_get(hw, wl->vif, NULL);
if (unlikely(!beacon))
return -ENOMEM;
+ spin_lock_irqsave(&wl->irq_lock, flags);
b43_update_templates(wl, beacon);
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
return 0;
}
@@ -3605,8 +3603,11 @@ static int b43_op_ibss_beacon_update(str
struct ieee80211_tx_control *ctl)
{
struct b43_wl *wl = hw_to_b43_wl(hw);
+ unsigned long flags;
+ spin_lock_irqsave(&wl->irq_lock, flags);
b43_update_templates(wl, beacon);
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
return 0;
}
-
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