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55 lines
1.2 KiB
55 lines
1.2 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Copyright (C) 2017 [email protected] |
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*/ |
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#include <linux/slab.h> |
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#include "tpm-dev.h" |
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struct tpmrm_priv { |
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struct file_priv priv; |
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struct tpm_space space; |
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}; |
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static int tpmrm_open(struct inode *inode, struct file *file) |
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{ |
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struct tpm_chip *chip; |
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struct tpmrm_priv *priv; |
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int rc; |
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chip = container_of(inode->i_cdev, struct tpm_chip, cdevs); |
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priv = kzalloc(sizeof(*priv), GFP_KERNEL); |
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if (priv == NULL) |
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return -ENOMEM; |
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rc = tpm2_init_space(&priv->space, TPM2_SPACE_BUFFER_SIZE); |
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if (rc) { |
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kfree(priv); |
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return -ENOMEM; |
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} |
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tpm_common_open(file, chip, &priv->priv, &priv->space); |
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return 0; |
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} |
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static int tpmrm_release(struct inode *inode, struct file *file) |
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{ |
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struct file_priv *fpriv = file->private_data; |
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struct tpmrm_priv *priv = container_of(fpriv, struct tpmrm_priv, priv); |
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tpm_common_release(file, fpriv); |
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tpm2_del_space(fpriv->chip, &priv->space); |
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kfree(priv); |
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return 0; |
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} |
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const struct file_operations tpmrm_fops = { |
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.owner = THIS_MODULE, |
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.llseek = no_llseek, |
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.open = tpmrm_open, |
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.read = tpm_common_read, |
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.write = tpm_common_write, |
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.poll = tpm_common_poll, |
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.release = tpmrm_release, |
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};
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