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iwlwifi: mvm: Fix VIF specific debugfs directory creation 

Avoid creating VIF specific debugfs directory if already exist.
This may happen when, for example, resetting hw, suspend-resume.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
This commit is contained in:
Alexander Bondar 2013-06-23 20:31:07 +03:00 committed by Johannes Berg
parent 707aee401d
commit 0ecb376375
1 changed files with 5 additions and 1 deletions
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6
drivers/net/wireless/iwlwifi/mvm/debugfs.c
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@ -988,7 +988,11 @@ void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
char buf[100];
if (!dbgfs_dir)
/*
* Check if debugfs directory already exist before creating it.
* This may happen when, for example, resetting hw or suspend-resume
*/
if (!dbgfs_dir || mvmvif->dbgfs_dir)
return;
mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);