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tpm_tis: missing platform_driver_unregister() on error in init_tis()

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Add the missing platform_driver_unregister() before return
from init_tis() in the device register error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
This commit is contained in:
Wei Yongjun 2013-04-25 15:07:47 +08:00 committed by Kent Yoder
parent 4726e8fa1d
commit 4fba3c3ba5
1 changed files with 12 additions and 5 deletions
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17
drivers/char/tpm/tpm_tis.c
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@ -884,12 +884,19 @@ 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);
if((rc=tpm_tis_init(&pdev->dev, TIS_MEM_BASE, TIS_MEM_LEN, 0)) != 0) {
platform_device_unregister(pdev);
platform_driver_unregister(&tis_drv);
pdev = platform_device_register_simple("tpm_tis", -1, NULL, 0);
if (IS_ERR(pdev)) {
rc = PTR_ERR(pdev);
goto err_dev;
}
rc = tpm_tis_init(&pdev->dev, TIS_MEM_BASE, TIS_MEM_LEN, 0);
if (rc)
goto err_init;
return 0;
err_init:
platform_device_unregister(pdev);
err_dev:
platform_driver_unregister(&tis_drv);
return rc;
}