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wifi: iwlwifi: fw: fix memory leak in debugfs

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[ Upstream commit 3d90d2f4a018fe8cfd65068bc6350b6222be4852 ]

Fix a memory leak that occurs when reading the fw_info
file all the way, since we return NULL indicating no
more data, but don't free the status tracking object.

Fixes: 36dfe9ac6e ("iwlwifi: dump api version in yaml format")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230418122405.239e501b3b8d.I4268f87809ef91209cbcd748eee0863195e70fa2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Johannes Berg 2023-04-18 12:28:05 +03:00 committed by Greg Kroah-Hartman
parent 80c5ba0078
commit 37f64bc8e0
1 changed files with 3 additions and 1 deletions
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4
drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
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@ -317,8 +317,10 @@ static void *iwl_dbgfs_fw_info_seq_next(struct seq_file *seq,
const struct iwl_fw *fw = priv->fwrt->fw;
*pos = ++state->pos;
if (*pos >= fw->ucode_capa.n_cmd_versions)
if (*pos >= fw->ucode_capa.n_cmd_versions) {
kfree(state);
return NULL;
}
return state;
}