linux-kernel - [PATCH] tpm_tis: fix missing platform_driver

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Date:	Thu, 2 May 2013 19:39:50 +0800
From:	Libo Chen <clbchenlibo.chen@...wei.com>
To:	<key@...ux.vnet.ibm.com>, <mail@...jiv.net>, <tpmdd@...horst.net>,
	<tpmdd@...rix.com>
CC:	<tpmdd-devel@...ts.sourceforge.net>,
	<linux-kernel@...r.kernel.org>, Li Zefan <lizefan@...wei.com>
Subject: [PATCH] tpm_tis: fix missing platform_driver_unregister


Add missing unregister tis_drv after register pdev fail

Signed-off-by: Libo Chen <libo.chen@...wei.com>
---
 drivers/char/tpm/tpm_tis.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 8a41b6b..d5b0af4 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -884,8 +884,11 @@ static int __init init_tis(void)
 	rc = platform_driver_register(&tis_drv);
 	if (rc < 0)
 		return rc;
-	if (IS_ERR(pdev=platform_device_register_simple("tpm_tis", -1, NULL, 0)))
-		return PTR_ERR(pdev);
+	pdev = platform_device_register_simple("tpm_tis", -1, NULL, 0);
+	if (IS_ERR(pdev) {
+	    platform_driver_unregister(&tis_drv);
+	    return PTR_ERR(pdev);
+	}
 	if((rc=tpm_tis_init(&pdev->dev, TIS_MEM_BASE, TIS_MEM_LEN, 0)) != 0) {
 		platform_device_unregister(pdev);
 		platform_driver_unregister(&tis_drv);
-- 
1.7.1

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