From 37da1128230be70c06eb967a0e1772efb23eb587 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Thu, 21 Jul 2011 10:04:54 +0300
Subject: [PATCH] ath6kl: fix atomicity in ath6kl_cfg80211_scan_node()
ath6kl_cfg80211_scan_node() was calling cfg80211_inform_bss_frame()
with CFP_KERNEL but the function is executed with a spin lock taken.
This is wrong and the function must use GFP_ATOMIC instead.
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
drivers/net/wireless/ath/ath6kl/cfg80211.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index b9090b876d45f..eff99837819e8 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -720,6 +720,7 @@ static inline bool is_ch_11a(u16 ch)
return (!((ch >= 2412) && (ch <= 2484)));
}
+/* struct ath6kl_node_table::nt_nodelock is locked when calling this */
static void ath6kl_cfg80211_scan_node(void *arg, struct bss *ni)
{
struct wiphy *wiphy = (struct wiphy *)arg;
@@ -769,7 +770,7 @@ static void ath6kl_cfg80211_scan_node(void *arg, struct bss *ni)
"%s: bssid %pM ch %d freq %d size %d\n", __func__,
mgmt->bssid, channel->hw_value, freq, size);
cfg80211_inform_bss_frame(wiphy, channel, mgmt,
- size, signal, GFP_KERNEL);
+ size, signal, GFP_ATOMIC);
kfree(ieeemgmtbuf);
}
--
2.39.5