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authorJohn W. Linville <linville@tuxdriver.com>2007-01-02 21:22:05 -0500
committerJeff Garzik <jeff@garzik.org>2007-02-05 16:58:42 -0500
commit6bbdce5ac755e3b3cdcf9bb9fdbcc2af78ad34d0 (patch)
tree8547e58011042d938474332ffff5ef412602f69e
parentff86a543e9de35c5b17a289a58aed0be4e7b9d22 (diff)
[PATCH] softmac: avoid assert in ieee80211softmac_wx_get_rate
Unconfigured bcm43xx device can hit an assert() during wx_get_rate queries. This is because bcm43xx calls ieee80211softmac_start late (i.e. during open instead of probe). bcm43xx_net_open -> bcm43xx_init_board -> bcm43xx_select_wireless_core -> ieee80211softmac_start Fix is to check that device is running before completing ieee80211softmac_wx_get_rate. Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--net/ieee80211/softmac/ieee80211softmac_wx.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/ieee80211/softmac/ieee80211softmac_wx.c b/net/ieee80211/softmac/ieee80211softmac_wx.c
index fa2f7da606a..fb58e03b3fb 100644
--- a/net/ieee80211/softmac/ieee80211softmac_wx.c
+++ b/net/ieee80211/softmac/ieee80211softmac_wx.c
@@ -265,6 +265,12 @@ ieee80211softmac_wx_get_rate(struct net_device *net_dev,
int err = -EINVAL;
spin_lock_irqsave(&mac->lock, flags);
+
+ if (unlikely(!mac->running)) {
+ err = -ENODEV;
+ goto out_unlock;
+ }
+
switch (mac->txrates.default_rate) {
case IEEE80211_CCK_RATE_1MB:
data->bitrate.value = 1000000;