diff options
| author | Michal Kazior <michal.kazior@tieto.com> | 2015-08-05 12:15:23 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2015-08-13 14:29:55 +0300 |
| commit | adaeed74bc085bc59991cd6e23ee7f720b6c6aab (patch) | |
| tree | faf14de9790d895ced76b3d185bb03b1f22e0ef0 /drivers/net/wireless | |
| parent | 6f7429c29b9979d64d067543caec940bbc023340 (diff) | |
| download | op-kernel-dev-adaeed74bc085bc59991cd6e23ee7f720b6c6aab.zip op-kernel-dev-adaeed74bc085bc59991cd6e23ee7f720b6c6aab.tar.gz | |
ath10k: don't remove peer that doesn't exist
If peer creation failed during offchannel Tx the
driver attempted to delete the peer nonetheless.
This caused the ar->num_peers counter to be
incorrectly decremented. This subsequently could
cause the counter to drop below 0 and also
eventually lead to firmware crash because host
would think there are less peer entries created in
firmware then there really were.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/mac.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index 53c627a..cf74db7 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -3335,6 +3335,7 @@ void ath10k_offchan_tx_work(struct work_struct *work) int vdev_id; int ret; unsigned long time_left; + bool tmp_peer_created = false; /* FW requirement: We must create a peer before FW will send out * an offchannel frame. Otherwise the frame will be stuck and @@ -3372,6 +3373,7 @@ void ath10k_offchan_tx_work(struct work_struct *work) if (ret) ath10k_warn(ar, "failed to create peer %pM on vdev %d: %d\n", peer_addr, vdev_id, ret); + tmp_peer_created = (ret == 0); } spin_lock_bh(&ar->data_lock); @@ -3387,7 +3389,7 @@ void ath10k_offchan_tx_work(struct work_struct *work) ath10k_warn(ar, "timed out waiting for offchannel skb %p\n", skb); - if (!peer) { + if (!peer && tmp_peer_created) { ret = ath10k_peer_delete(ar, vdev_id, peer_addr); if (ret) ath10k_warn(ar, "failed to delete peer %pM on vdev %d: %d\n", |
