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mac80211: fix a crash in legacy minstrel when no STA exists

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37342 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
Felix Fietkau
2013-07-15 12:35:23 +00:00
parent f23bda0672
commit fbd0ec7990
1 changed files with 19 additions and 0 deletions
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19
package/kernel/mac80211/patches/300-pending_work.patch
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@@ -779,3 +779,22 @@
}
static int cfg80211_sme_connect(struct wireless_dev *wdev,
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -290,7 +290,7 @@ minstrel_get_rate(void *priv, struct iee
struct minstrel_rate *msr, *mr;
unsigned int ndx;
bool mrr_capable;
- bool prev_sample = mi->prev_sample;
+ bool prev_sample;
int delta;
int sampling_ratio;
@@ -314,6 +314,7 @@ minstrel_get_rate(void *priv, struct iee
(mi->sample_count + mi->sample_deferred / 2);
/* delta < 0: no sampling required */
+ prev_sample = mi->prev_sample;
mi->prev_sample = false;
if (delta < 0 || (!mrr_capable && prev_sample))
return;