From: Johannes Berg <johannes.berg@xxxxxxxxx>
If this ever happens, and it looks like some code in PCIe is
a bit broken and might lead to this, we want to know without
crashing, so add a WARN_ON_ONCE().
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h b/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h
index e6d2e0994317..cf9c64090014 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
- * Copyright (C) 2005-2014, 2018-2020 Intel Corporation
+ * Copyright (C) 2005-2014, 2018-2021 Intel Corporation
* Copyright (C) 2013-2014 Intel Mobile Communications GmbH
* Copyright (C) 2015 Intel Deutschland GmbH
*/
@@ -176,6 +176,8 @@ iwl_op_mode_hw_rf_kill(struct iwl_op_mode *op_mode, bool state)
static inline void iwl_op_mode_free_skb(struct iwl_op_mode *op_mode,
struct sk_buff *skb)
{
+ if (WARN_ON_ONCE(!op_mode))
+ return;
op_mode->ops->free_skb(op_mode, skb);
}
--
2.31.0
