From: Johannes Berg johannes.berg@intel.com
[ Upstream commit 6518f83ffa51131daaf439b66094f684da3fb0ae ]
When CONFIG_DEBUG_TEST_DRIVER_REMOVE is set, iwlwifi crashes when the opmode module cannot be loaded, due to completing the completion before using drv->dev, which can then already be freed.
Fix this by removing the (fairly useless) message. Moving the completion later causes a deadlock instead, so that's not an option.
Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Luca Coelho luciano.coelho@intel.com Link: https://lore.kernel.org/r/20211210091245.289008-2-luca@coelho.fi Signed-off-by: Luca Coelho luciano.coelho@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c index ad94526a4e1e7..f53ce9c086947 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c @@ -1639,15 +1639,8 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) * else from proceeding if the module fails to load * or hangs loading. */ - if (load_module) { + if (load_module) request_module("%s", op->name); -#ifdef CONFIG_IWLWIFI_OPMODE_MODULAR - if (err) - IWL_ERR(drv, - "failed to load module %s (error %d), is dynamic loading enabled?\n", - op->name, err); -#endif - } failure = false; goto free;