From dad79cb89254ce646906846b0f0cf7995d626710 Mon Sep 17 00:00:00 2001 From: Wanlong Gao Date: Wed, 16 May 2012 16:24:28 +0800 Subject: [PATCH] TPM: fix memleak when register hardware fails Adding proper kfree() before returning. Signed-off-by: Wanlong Gao Signed-off-by: Rajiv Andrade --- drivers/char/tpm/tpm.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index 08427abf5fa53e..dae254d5372334 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -1413,15 +1413,12 @@ struct tpm_chip *tpm_register_hardware(struct device *dev, "unable to misc_register %s, minor %d\n", chip->vendor.miscdev.name, chip->vendor.miscdev.minor); - put_device(chip->dev); - return NULL; + goto put_device; } if (sysfs_create_group(&dev->kobj, chip->vendor.attr_group)) { misc_deregister(&chip->vendor.miscdev); - put_device(chip->dev); - - return NULL; + goto put_device; } chip->bios_dir = tpm_bios_log_setup(devname); @@ -1433,6 +1430,8 @@ struct tpm_chip *tpm_register_hardware(struct device *dev, return chip; +put_device: + put_device(chip->dev); out_free: kfree(chip); kfree(devname);