-stable review patch. If anyone has any objections, please let us know.
------------------
From: John W. Linville <[email protected]>
[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 <[email protected]>
Cc: Chuck Ebbert <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/ieee80211/softmac/ieee80211softmac_wx.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/net/ieee80211/softmac/ieee80211softmac_wx.c
+++ b/net/ieee80211/softmac/ieee80211softmac_wx.c
@@ -265,6 +265,12 @@ ieee80211softmac_wx_get_rate(struct net_
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;
--
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
