On Tue, 2011-07-19 at 17:42 -0400, Pavel Roskin wrote:
> for (i = 0; i < IEEE80211_NUM_BANDS; i++)
> request->rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1;
Ah crap, I didn't pay attention and never tested a single-band card.
Below change should fix it.
johannes
---
net/wireless/nl80211.c | 4 +++-
net/wireless/scan.c | 3 ++-
net/wireless/util.c | 3 +++
3 files changed, 8 insertions(+), 2 deletions(-)
--- a/net/wireless/nl80211.c 2011-07-19 23:52:44.000000000 +0200
+++ b/net/wireless/nl80211.c 2011-07-19 23:53:26.000000000 +0200
@@ -3454,7 +3454,9 @@ static int nl80211_trigger_scan(struct s
}
for (i = 0; i < IEEE80211_NUM_BANDS; i++)
- request->rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1;
+ if (wiphy->bands[i])
+ request->rates[i] =
+ (1 << wiphy->bands[i]->n_bitrates) - 1;
if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
nla_for_each_nested(attr,
--- a/net/wireless/scan.c 2011-07-19 23:52:45.000000000 +0200
+++ b/net/wireless/scan.c 2011-07-19 23:53:21.000000000 +0200
@@ -864,7 +864,8 @@ int cfg80211_wext_siwscan(struct net_dev
}
for (i = 0; i < IEEE80211_NUM_BANDS; i++)
- creq->rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1;
+ if (wiphy->bands[i])
+ creq->rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1;
rdev->scan_req = creq;
err = rdev->ops->scan(wiphy, dev, creq);
--- a/net/wireless/util.c 2011-07-19 23:53:39.000000000 +0200
+++ b/net/wireless/util.c 2011-07-19 23:53:57.000000000 +0200
@@ -1013,6 +1013,9 @@ int ieee80211_get_ratemask(struct ieee80
{
int i, j;
+ if (!sband)
+ return -EINVAL;
+
if (n_rates == 0 || n_rates > NL80211_MAX_SUPP_RATES)
return -EINVAL;
--
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