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authorJohannes Berg <johannes.berg@intel.com>2021-01-15 12:05:50 +0100
committerKalle Valo <kvalo@codeaurora.org>2021-01-25 14:52:51 +0100
commit1c58bed4b7f7551239b9005ad0a9a6566a3d9fbe (patch)
treeaaf42c7be69a62ddfa8a878f8b27bdcf76d76dbe /drivers
parentiwlwifi: pcie: avoid potential PNVM leaks (diff)
downloadlinux-1c58bed4b7f7551239b9005ad0a9a6566a3d9fbe.tar.xz
linux-1c58bed4b7f7551239b9005ad0a9a6566a3d9fbe.zip
iwlwifi: pnvm: don't skip everything when not reloading
Even if we don't reload the file from disk, we still need to trigger the PNVM load flow with the device; fix that. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Fixes: 6972592850c0 ("iwlwifi: read and parse PNVM file") Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/iwlwifi.20210115130252.85ef56c4ef8c.I3b853ce041a0755d45e448035bef1837995d191b@changeid
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/fw/pnvm.c50
1 files changed, 25 insertions, 25 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c b/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c
index 6d8f7bff1243..ebd1a09a2fb8 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c
@@ -224,40 +224,40 @@ static int iwl_pnvm_parse(struct iwl_trans *trans, const u8 *data,
int iwl_pnvm_load(struct iwl_trans *trans,
struct iwl_notif_wait_data *notif_wait)
{
- const struct firmware *pnvm;
struct iwl_notification_wait pnvm_wait;
static const u16 ntf_cmds[] = { WIDE_ID(REGULATORY_AND_NVM_GROUP,
PNVM_INIT_COMPLETE_NTFY) };
- char pnvm_name[64];
- int ret;
/* if the SKU_ID is empty, there's nothing to do */
if (!trans->sku_id[0] && !trans->sku_id[1] && !trans->sku_id[2])
return 0;
- /* if we already have it, nothing to do either */
- if (trans->pnvm_loaded)
- return 0;
+ /* load from disk only if we haven't done it before */
+ if (!trans->pnvm_loaded) {
+ const struct firmware *pnvm;
+ char pnvm_name[64];
+ int ret;
+
+ /*
+ * The prefix unfortunately includes a hyphen at the end, so
+ * don't add the dot here...
+ */
+ snprintf(pnvm_name, sizeof(pnvm_name), "%spnvm",
+ trans->cfg->fw_name_pre);
+
+ /* ...but replace the hyphen with the dot here. */
+ if (strlen(trans->cfg->fw_name_pre) < sizeof(pnvm_name))
+ pnvm_name[strlen(trans->cfg->fw_name_pre) - 1] = '.';
+
+ ret = firmware_request_nowarn(&pnvm, pnvm_name, trans->dev);
+ if (ret) {
+ IWL_DEBUG_FW(trans, "PNVM file %s not found %d\n",
+ pnvm_name, ret);
+ } else {
+ iwl_pnvm_parse(trans, pnvm->data, pnvm->size);
- /*
- * The prefix unfortunately includes a hyphen at the end, so
- * don't add the dot here...
- */
- snprintf(pnvm_name, sizeof(pnvm_name), "%spnvm",
- trans->cfg->fw_name_pre);
-
- /* ...but replace the hyphen with the dot here. */
- if (strlen(trans->cfg->fw_name_pre) < sizeof(pnvm_name))
- pnvm_name[strlen(trans->cfg->fw_name_pre) - 1] = '.';
-
- ret = firmware_request_nowarn(&pnvm, pnvm_name, trans->dev);
- if (ret) {
- IWL_DEBUG_FW(trans, "PNVM file %s not found %d\n",
- pnvm_name, ret);
- } else {
- iwl_pnvm_parse(trans, pnvm->data, pnvm->size);
-
- release_firmware(pnvm);
+ release_firmware(pnvm);
+ }
}
iwl_init_notification_wait(notif_wait, &pnvm_wait,