linux-kernel - [ 210/262] iwlwifi: dont double free the interrupt in failure path

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Date:	Fri, 28 Sep 2012 11:52:19 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Greg KH <gregkh@...uxfoundation.org>, alan@...rguk.ukuu.org.uk,
	Brian Cockrell <brian.cockrell@...el.com>,
	Emmanuel Grumbach <emmanuel.grumbach@...el.com>,
	Johannes Berg <johannes.berg@...el.com>,
	"John W. Linville" <linville@...driver.com>
Subject: [ 210/262] iwlwifi: dont double free the interrupt in failure path

From: Greg KH <gregkh@...uxfoundation.org>

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

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

From: Emmanuel Grumbach <emmanuel.grumbach@...el.com>

commit a7be50b7e30f9d77cb059a7ffdb781bb0fb92eba upstream.

When the driver can't get the HW ready, we would release
the interrupt twice which made the kernel complain loudly.

Reported-by: Brian Cockrell <brian.cockrell@...el.com>
Tested-by: Brian Cockrell <brian.cockrell@...el.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@...el.com>
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
Signed-off-by: John W. Linville <linville@...driver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/wireless/iwlwifi/iwl-trans-pcie.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
+++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
@@ -1437,6 +1437,7 @@ static int iwl_trans_pcie_start_hw(struc
 	return err;

 err_free_irq:
+	trans_pcie->irq_requested = false;
 	free_irq(trans_pcie->irq, trans);
 error:
 	iwl_free_isr_ict(trans);

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