linux-kernel - [PATCH 4.2.y-ckt 174/211] tpm

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Message-Id: <1452023119-25647-175-git-send-email-kamal@canonical.com>
Date:	Tue,  5 Jan 2016 11:44:42 -0800
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Martin Wilck <Martin.Wilck@...fujitsu.com>,
	Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 4.2.y-ckt 174/211] tpm_tis: free irq after probing

4.2.8-ckt1 -stable review patch.  If anyone has any objections, please let me know.

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

From: Martin Wilck <Martin.Wilck@...fujitsu.com>

commit 2aef9da60bfdeb68dbcd4f114c098cbaa841b4ee upstream.

Release IRQs used for probing only. Otherwise the TPM will end up
with all IRQs 3-15 assigned.

Fixes: afb5abc262e9 ("tpm: two-phase chip management functions")
Signed-off-by: Martin Wilck <Martin.Wilck@...fujitsu.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Acked-by: Peter Huewe <PeterHuewe@....de>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/char/tpm/tpm_tis.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 696ef1d..19f9c7dc 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -805,6 +805,8 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info,
 			iowrite32(intmask,
 				  chip->vendor.iobase +
 				  TPM_INT_ENABLE(chip->vendor.locality));
+
+			devm_free_irq(dev, i, chip);
 		}
 	}
 	if (chip->vendor.irq) {
-- 
1.9.1

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