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path: root/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-trans-pcie.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-trans-pcie.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
index 8e8c75c997e..da3411057af 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
+++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
@@ -407,6 +407,7 @@ static void iwl_tx_queue_unmap(struct iwl_trans *trans, int txq_id)
struct iwl_queue *q = &txq->q;
enum dma_data_direction dma_dir;
unsigned long flags;
+ spinlock_t *lock;
if (!q->n_bd)
return;
@@ -414,19 +415,22 @@ static void iwl_tx_queue_unmap(struct iwl_trans *trans, int txq_id)
/* In the command queue, all the TBs are mapped as BIDI
* so unmap them as such.
*/
- if (txq_id == trans->shrd->cmd_queue)
+ if (txq_id == trans->shrd->cmd_queue) {
dma_dir = DMA_BIDIRECTIONAL;
- else
+ lock = &trans->hcmd_lock;
+ } else {
dma_dir = DMA_TO_DEVICE;
+ lock = &trans->shrd->sta_lock;
+ }
- spin_lock_irqsave(&trans->shrd->sta_lock, flags);
+ spin_lock_irqsave(lock, flags);
while (q->write_ptr != q->read_ptr) {
/* The read_ptr needs to bound by q->n_window */
iwlagn_txq_free_tfd(trans, txq, get_cmd_index(q, q->read_ptr),
dma_dir);
q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd);
}
- spin_unlock_irqrestore(&trans->shrd->sta_lock, flags);
+ spin_unlock_irqrestore(lock, flags);
}
/**