From: Shahar S Matityahu <[email protected]>

If the driver is unloaded when D3 debug data pulling is enabled
but not triggered, it doesn't release the data buffer.

Fix this by adding iwl_fw_runtime_free and calling it from the
relevant places.

Fixes: 2d8c261511ab ("iwlwifi: add d3 debug data support")
Signed-off-by: Shahar S Matityahu <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
---
 drivers/net/wireless/intel/iwlwifi/fw/runtime.h | 6 +++++-
 drivers/net/wireless/intel/iwlwifi/mvm/ops.c    | 2 ++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/runtime.h 
b/drivers/net/wireless/intel/iwlwifi/fw/runtime.h
index 6b95d0e75889..2b8b50a77990 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/runtime.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/runtime.h
@@ -154,7 +154,11 @@ void iwl_fw_runtime_init(struct iwl_fw_runtime *fwrt, 
struct iwl_trans *trans,
                        const struct iwl_fw_runtime_ops *ops, void *ops_ctx,
                        struct dentry *dbgfs_dir);
 
-void iwl_fw_runtime_exit(struct iwl_fw_runtime *fwrt);
+static inline void iwl_fw_runtime_free(struct iwl_fw_runtime *fwrt)
+{
+       kfree(fwrt->dump.d3_debug_data);
+       fwrt->dump.d3_debug_data = NULL;
+}
 
 void iwl_fw_runtime_suspend(struct iwl_fw_runtime *fwrt);
 
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c 
b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 0e2092526fae..af3fba10abc1 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -858,6 +858,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct 
iwl_cfg *cfg,
        iwl_mvm_thermal_exit(mvm);
  out_free:
        iwl_fw_flush_dump(&mvm->fwrt);
+       iwl_fw_runtime_free(&mvm->fwrt);
 
        if (iwlmvm_mod_params.init_dbg)
                return op_mode;
@@ -910,6 +911,7 @@ static void iwl_op_mode_mvm_stop(struct iwl_op_mode 
*op_mode)
 
        iwl_mvm_tof_clean(mvm);
 
+       iwl_fw_runtime_free(&mvm->fwrt);
        mutex_destroy(&mvm->mutex);
        mutex_destroy(&mvm->d0i3_suspend_mutex);
 
-- 
2.19.1

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