diff options
| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2023-01-10 09:48:48 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-15 12:13:40 +0200 |
| commit | 7dd6350307af6521b6240b295c93b7eec4daebe6 (patch) | |
| tree | 60a7fc86c91eaaa7e59057130859ff7647dcbd21 | |
| parent | a84858649b32e2550f418aaaf0a3e234207cf2c9 (diff) | |
iwlwifi: Add missing check for alloc_ordered_workqueue
[ Upstream commit 90a0d9f339960448a3acc1437a46730f975efd6a ]
Add check for the return value of alloc_ordered_workqueue since it may
return NULL pointer.
Fixes: b481de9ca074 ("[IWLWIFI]: add iwlwifi wireless drivers")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://patch.msgid.link/20230110014848.28226-1-jiasheng@iscas.ac.cn
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/dvm/main.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/main.c b/drivers/net/wireless/intel/iwlwifi/dvm/main.c index e0b14be25b02..b8713ebd7190 100644 --- a/drivers/net/wireless/intel/iwlwifi/dvm/main.c +++ b/drivers/net/wireless/intel/iwlwifi/dvm/main.c @@ -1048,9 +1048,11 @@ static void iwl_bg_restart(struct work_struct *data) * *****************************************************************************/ -static void iwl_setup_deferred_work(struct iwl_priv *priv) +static int iwl_setup_deferred_work(struct iwl_priv *priv) { priv->workqueue = alloc_ordered_workqueue(DRV_NAME, 0); + if (!priv->workqueue) + return -ENOMEM; INIT_WORK(&priv->restart, iwl_bg_restart); INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update); @@ -1067,6 +1069,8 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv) timer_setup(&priv->statistics_periodic, iwl_bg_statistics_periodic, 0); timer_setup(&priv->ucode_trace, iwl_bg_ucode_trace, 0); + + return 0; } void iwl_cancel_deferred_work(struct iwl_priv *priv) @@ -1454,7 +1458,9 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans, /******************** * 6. Setup services ********************/ - iwl_setup_deferred_work(priv); + if (iwl_setup_deferred_work(priv)) + goto out_uninit_drv; + iwl_setup_rx_handlers(priv); iwl_power_initialize(priv); @@ -1492,6 +1498,7 @@ out_destroy_workqueue: iwl_cancel_deferred_work(priv); destroy_workqueue(priv->workqueue); priv->workqueue = NULL; +out_uninit_drv: iwl_uninit_drv(priv); out_free_eeprom_blob: kfree(priv->eeprom_blob); |