iwlwifi: create drivers debugfs dir under wiphy->debugfsdir

This patch creates driver's debugfs tree under wiphy->debugfsdir.
This patch fixes collision in debugfs if two or more NICs are plugged.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index c64e602bc9b6..29e16ba69cdb 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -367,6 +367,7 @@ DEBUGFS_READ_FILE_OPS(tx_statistics);
 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 {
         struct iwl_debugfs *dbgfs;
+        struct dentry *phyd = priv->hw->wiphy->debugfsdir;
 
         dbgfs = kzalloc(sizeof(struct iwl_debugfs), GFP_KERNEL);
         if (!dbgfs) {
@@ -375,7 +376,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 
         priv->dbgfs = dbgfs;
         dbgfs->name = name;
-        dbgfs->dir_drv = debugfs_create_dir(name, NULL);
+        dbgfs->dir_drv = debugfs_create_dir(name, phyd);
         if (!dbgfs->dir_drv || IS_ERR(dbgfs->dir_drv)){
                 goto err;
         }