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path: root/drivers/net/wireless/intel/iwlwifi/queue/tx.c
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Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/queue/tx.c')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/queue/tx.c49
1 files changed, 24 insertions, 25 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/queue/tx.c b/drivers/net/wireless/intel/iwlwifi/queue/tx.c
index 27eea909e32d..62c0c4cbe481 100644
--- a/drivers/net/wireless/intel/iwlwifi/queue/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/queue/tx.c
@@ -142,26 +142,25 @@ void iwl_txq_gen2_free_tfd(struct iwl_trans *trans, struct iwl_txq *txq)
* idx is bounded by n_window
*/
int idx = iwl_txq_get_cmd_index(txq, txq->read_ptr);
+ struct sk_buff *skb;
lockdep_assert_held(&txq->lock);
+ if (!txq->entries)
+ return;
+
iwl_txq_gen2_tfd_unmap(trans, &txq->entries[idx].meta,
iwl_txq_get_tfd(trans, txq, idx));
- /* free SKB */
- if (txq->entries) {
- struct sk_buff *skb;
-
- skb = txq->entries[idx].skb;
+ skb = txq->entries[idx].skb;
- /* Can be called from irqs-disabled context
- * If skb is not NULL, it means that the whole queue is being
- * freed and that the queue is not empty - free the skb
- */
- if (skb) {
- iwl_op_mode_free_skb(trans->op_mode, skb);
- txq->entries[idx].skb = NULL;
- }
+ /* Can be called from irqs-disabled context
+ * If skb is not NULL, it means that the whole queue is being
+ * freed and that the queue is not empty - free the skb
+ */
+ if (skb) {
+ iwl_op_mode_free_skb(trans->op_mode, skb);
+ txq->entries[idx].skb = NULL;
}
}
@@ -1494,28 +1493,28 @@ void iwl_txq_free_tfd(struct iwl_trans *trans, struct iwl_txq *txq)
*/
int rd_ptr = txq->read_ptr;
int idx = iwl_txq_get_cmd_index(txq, rd_ptr);
+ struct sk_buff *skb;
lockdep_assert_held(&txq->lock);
+ if (!txq->entries)
+ return;
+
/* We have only q->n_window txq->entries, but we use
* TFD_QUEUE_SIZE_MAX tfds
*/
iwl_txq_gen1_tfd_unmap(trans, &txq->entries[idx].meta, txq, rd_ptr);
/* free SKB */
- if (txq->entries) {
- struct sk_buff *skb;
-
- skb = txq->entries[idx].skb;
+ skb = txq->entries[idx].skb;
- /* Can be called from irqs-disabled context
- * If skb is not NULL, it means that the whole queue is being
- * freed and that the queue is not empty - free the skb
- */
- if (skb) {
- iwl_op_mode_free_skb(trans->op_mode, skb);
- txq->entries[idx].skb = NULL;
- }
+ /* Can be called from irqs-disabled context
+ * If skb is not NULL, it means that the whole queue is being
+ * freed and that the queue is not empty - free the skb
+ */
+ if (skb) {
+ iwl_op_mode_free_skb(trans->op_mode, skb);
+ txq->entries[idx].skb = NULL;
}
}