diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2021-12-10 11:12:42 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-27 09:19:44 +0100 |
| commit | 0446cafa843e6db4982731c167e11c80d42be7e2 (patch) | |
| tree | 73865fec932196062af69ff5bf04f07f54965387 /drivers/net/wireless | |
| parent | c8fe499c456528a8a946058e33a52f1762c41c89 (diff) | |
iwlwifi: fix leaks/bad data after failed firmware load
[ Upstream commit ab07506b0454bea606095951e19e72c282bfbb42 ]
If firmware load fails after having loaded some parts of the
firmware, e.g. the IML image, then this would leak. For the
host command list we'd end up running into a WARN on the next
attempt to load another firmware image.
Fix this by calling iwl_dealloc_ucode() on failures, and make
that also clear the data so we start fresh on the next round.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211210110539.1f742f0eb58a.I1315f22f6aa632d94ae2069f85e1bca5e734dce0@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c index e68366f248fe..c1a2fb154fe9 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c @@ -183,6 +183,9 @@ static void iwl_dealloc_ucode(struct iwl_drv *drv) for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) iwl_free_fw_img(drv, drv->fw.img + i); + + /* clear the data for the aborted load case */ + memset(&drv->fw, 0, sizeof(drv->fw)); } static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc, @@ -1338,6 +1341,7 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) int i; bool load_module = false; bool usniffer_images = false; + bool failure = true; fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH; fw->ucode_capa.standard_phy_calibration_size = @@ -1604,6 +1608,7 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) op->name, err); #endif } + failure = false; goto free; try_again: @@ -1619,6 +1624,9 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) complete(&drv->request_firmware_complete); device_release_driver(drv->trans->dev); free: + if (failure) + iwl_dealloc_ucode(drv); + if (pieces) { for (i = 0; i < ARRAY_SIZE(pieces->img); i++) kfree(pieces->img[i].sec); |