If the interface is down, txq is NULL. iwlagn_wait_tx_queue_empty
needs to check for this case to avoid dereferencing that pointer.
Signed-off-by: Keith Packard <keithp@xxxxxxxxxx>
---
This is on top of v3.0
drivers/net/wireless/iwlwifi/iwl-agn-lib.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
index f803fb6..d6ae444 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
@@ -1487,6 +1487,9 @@ int iwlagn_wait_tx_queue_empty(struct iwl_priv *priv)
unsigned long now = jiffies;
int ret = 0;
+ if (!priv->txq)
+ return 0;
+
/* waiting for all the tx frames complete might take a while */
for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
if (cnt == priv->cmd_queue)
--
1.7.5.4
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