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| author | Johannes Berg <johannes.berg@intel.com> | 2013-10-25 12:32:51 +0200 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2013-10-29 14:53:50 +0100 |
| commit | befe9b6fd897e1bfce224b662ce62dd751843c34 (patch) | |
| tree | fd7d5901b2d5c92a427d0bbfc6ae234f9dcd508d /drivers/net | |
| parent | cbb346f2fc61acf62f97e3dd4da230b12f1cafaf (diff) | |
| download | linux-stable-befe9b6fd897e1bfce224b662ce62dd751843c34.tar.gz linux-stable-befe9b6fd897e1bfce224b662ce62dd751843c34.tar.bz2 linux-stable-befe9b6fd897e1bfce224b662ce62dd751843c34.zip | |
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 <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/dvm/ucode.c | 9 | ||||
| -rw-r--r-- | 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 86270b69cd02..63637949a146 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 83fc5ca04433..70e5297646b2 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), |