From befe9b6fd897e1bfce224b662ce62dd751843c34 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 25 Oct 2013 12:32:51 +0200 Subject: [PATCH] iwlwifi: warn if firmware image doesn't exist If the firmware image that we attempt to load doesn't actually exist we have a broken firmware file or other code not checking things correctly, so warn in such a case. Also avoid assigning cur_ucode/ucode_loaded then. Signed-off-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/dvm/ucode.c | 9 ++++----- drivers/net/wireless/iwlwifi/mvm/fw.c | 8 +++----- 2 files changed, 7 insertions(+), 10 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/dvm/ucode.c b/drivers/net/wireless/iwlwifi/dvm/ucode.c index 86270b6..6363794 100644 --- a/drivers/net/wireless/iwlwifi/dvm/ucode.c +++ b/drivers/net/wireless/iwlwifi/dvm/ucode.c @@ -330,15 +330,14 @@ int iwl_load_ucode_wait_alive(struct iwl_priv *priv, enum iwl_ucode_type old_type; static const u8 alive_cmd[] = { REPLY_ALIVE }; - old_type = priv->cur_ucode; - priv->cur_ucode = ucode_type; fw = iwl_get_ucode_image(priv, ucode_type); + if (WARN_ON(!fw)) + return -EINVAL; + old_type = priv->cur_ucode; + priv->cur_ucode = ucode_type; priv->ucode_loaded = false; - if (!fw) - return -EINVAL; - iwl_init_notification_wait(&priv->notif_wait, &alive_wait, alive_cmd, ARRAY_SIZE(alive_cmd), iwl_alive_fn, &alive_data); diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c index 83fc5ca..70e5297 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw.c +++ b/drivers/net/wireless/iwlwifi/mvm/fw.c @@ -151,13 +151,11 @@ static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm, enum iwl_ucode_type old_type = mvm->cur_ucode; static const u8 alive_cmd[] = { MVM_ALIVE }; - mvm->cur_ucode = ucode_type; fw = iwl_get_ucode_image(mvm, ucode_type); - - mvm->ucode_loaded = false; - - if (!fw) + if (WARN_ON(!fw)) return -EINVAL; + mvm->cur_ucode = ucode_type; + mvm->ucode_loaded = false; iwl_init_notification_wait(&mvm->notif_wait, &alive_wait, alive_cmd, ARRAY_SIZE(alive_cmd), -- 2.7.4