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authorIvo van Doorn <ivdoorn@gmail.com>2008-08-06 16:18:31 +0200
committerJohn W. Linville <linville@tuxdriver.com>2008-08-07 09:49:04 -0400
commit0fc980392e5a06cff34ca7acaac5790bb59528d1 (patch)
tree2f1d0dd3b710b8c2a556dbf7ca7cee8c1c9f0675 /drivers/net/wireless
parent8dbc1722a78343eb80f0ce1a3ef1965a9774ad5b (diff)
downloadblackbird-op-linux-0fc980392e5a06cff34ca7acaac5790bb59528d1.tar.gz
blackbird-op-linux-0fc980392e5a06cff34ca7acaac5790bb59528d1.zip
rt2x00: Block all unsupported modes
It was possible for unsupported operating modes to be accepted by the add_interface callback function. This patch will block those modes until proper support has been implemented for them. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00mac.c54
1 files changed, 37 insertions, 17 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index bd422fd6a894..d06507388635 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -203,23 +203,43 @@ int rt2x00mac_add_interface(struct ieee80211_hw *hw,
!test_bit(DEVICE_STARTED, &rt2x00dev->flags))
return -ENODEV;
- /*
- * We don't support mixed combinations of sta and ap virtual
- * interfaces. We can only add this interface when the rival
- * interface count is 0.
- */
- if ((conf->type == IEEE80211_IF_TYPE_AP && rt2x00dev->intf_sta_count) ||
- (conf->type != IEEE80211_IF_TYPE_AP && rt2x00dev->intf_ap_count))
- return -ENOBUFS;
-
- /*
- * Check if we exceeded the maximum amount of supported interfaces.
- */
- if ((conf->type == IEEE80211_IF_TYPE_AP &&
- rt2x00dev->intf_ap_count >= rt2x00dev->ops->max_ap_intf) ||
- (conf->type != IEEE80211_IF_TYPE_AP &&
- rt2x00dev->intf_sta_count >= rt2x00dev->ops->max_sta_intf))
- return -ENOBUFS;
+ switch (conf->type) {
+ case IEEE80211_IF_TYPE_AP:
+ /*
+ * We don't support mixed combinations of
+ * sta and ap interfaces.
+ */
+ if (rt2x00dev->intf_sta_count)
+ return -ENOBUFS;
+
+ /*
+ * Check if we exceeded the maximum amount
+ * of supported interfaces.
+ */
+ if (rt2x00dev->intf_ap_count >= rt2x00dev->ops->max_ap_intf)
+ return -ENOBUFS;
+
+ break;
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ /*
+ * We don't support mixed combinations of
+ * sta and ap interfaces.
+ */
+ if (rt2x00dev->intf_ap_count)
+ return -ENOBUFS;
+
+ /*
+ * Check if we exceeded the maximum amount
+ * of supported interfaces.
+ */
+ if (rt2x00dev->intf_sta_count >= rt2x00dev->ops->max_sta_intf)
+ return -ENOBUFS;
+
+ break;
+ default:
+ return -EINVAL;
+ }
/*
* Loop through all beacon queues to find a free
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