linux-kernel - [PATCH 3.10 037/104] iwlwifi: mvm: fix missing cleanup in .start() error path

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Date:	Tue,  4 Feb 2014 13:01:40 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Eliad Peller <eliadx.peller@...el.com>,
	Emmanuel Grumbach <emmanuel.grumbach@...el.com>
Subject: [PATCH 3.10 037/104] iwlwifi: mvm: fix missing cleanup in .start() error path

3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eliad Peller <eliadx.peller@...el.com>

commit 91b0d1198417cf4fd9a7bd4138b6909f0b359099 upstream.

Cleanup of iwl_mvm_leds was missing in case of error,
resulting in the following warning:

WARNING: at lib/kobject.c:196 kobject_add_internal+0x1f4/0x210()
kobject_add_internal failed for phy0-led with -EEXIST, don't try to register things with the same name in the same directory.

which prevents further reloads of the driver.

Signed-off-by: Eliad Peller <eliadx.peller@...el.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/wireless/iwlwifi/mvm/ops.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -424,6 +424,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *
 
  out_unregister:
 	ieee80211_unregister_hw(mvm->hw);
+	iwl_mvm_leds_exit(mvm);
  out_free:
 	iwl_phy_db_free(mvm->phy_db);
 	kfree(mvm->scan_cmd);


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