linux-kernel - [PATCH 4.3 050/200] tpm_tis: free irq after probing

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Date:	Sun, 14 Feb 2016 14:20:57 -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, Martin Wilck <Martin.Wilck@...fujitsu.com>,
	Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
	Peter Huewe <PeterHuewe@....de>
Subject: [PATCH 4.3 050/200] tpm_tis: free irq after probing

4.3-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: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/char/tpm/tpm_tis.c |    2 ++
 1 file changed, 2 insertions(+)

--- 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 *d
 			iowrite32(intmask,
 				  chip->vendor.iobase +
 				  TPM_INT_ENABLE(chip->vendor.locality));
+
+			devm_free_irq(dev, i, chip);
 		}
 	}
 	if (chip->vendor.irq) {