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path: root/drivers/net/wireless/iwlwifi/mvm/debugfs.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/debugfs.c')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/debugfs.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index f89b795fd4b..afd1986a321 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -988,9 +988,14 @@ static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
char *buf, size_t count,
loff_t *ppos)
{
- mutex_lock(&mvm->mutex);
+ int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
+
+ if (ret)
+ return ret;
+
iwl_mvm_fw_dbg_collect(mvm);
- mutex_unlock(&mvm->mutex);
+
+ iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
return count;
}