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tee: export teedev_open() and teedev_close_context()
commit 1e2c3ef049
upstream.
Exports the two functions teedev_open() and teedev_close_context() in
order to make it easier to create a driver internal struct tee_context.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
bae7fc6f0d
commit
eb35461384
2 changed files with 18 additions and 2 deletions
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@ -43,7 +43,7 @@ static DEFINE_SPINLOCK(driver_lock);
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static struct class *tee_class;
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static struct class *tee_class;
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static dev_t tee_devt;
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static dev_t tee_devt;
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static struct tee_context *teedev_open(struct tee_device *teedev)
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struct tee_context *teedev_open(struct tee_device *teedev)
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{
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{
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int rc;
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int rc;
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struct tee_context *ctx;
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struct tee_context *ctx;
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@ -70,6 +70,7 @@ static struct tee_context *teedev_open(struct tee_device *teedev)
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return ERR_PTR(rc);
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return ERR_PTR(rc);
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}
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}
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EXPORT_SYMBOL_GPL(teedev_open);
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void teedev_ctx_get(struct tee_context *ctx)
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void teedev_ctx_get(struct tee_context *ctx)
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{
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{
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@ -96,13 +97,14 @@ void teedev_ctx_put(struct tee_context *ctx)
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kref_put(&ctx->refcount, teedev_ctx_release);
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kref_put(&ctx->refcount, teedev_ctx_release);
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}
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}
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static void teedev_close_context(struct tee_context *ctx)
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void teedev_close_context(struct tee_context *ctx)
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{
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{
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struct tee_device *teedev = ctx->teedev;
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struct tee_device *teedev = ctx->teedev;
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teedev_ctx_put(ctx);
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teedev_ctx_put(ctx);
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tee_device_put(teedev);
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tee_device_put(teedev);
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}
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}
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EXPORT_SYMBOL_GPL(teedev_close_context);
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static int tee_open(struct inode *inode, struct file *filp)
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static int tee_open(struct inode *inode, struct file *filp)
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{
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{
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@ -582,4 +582,18 @@ struct tee_client_driver {
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#define to_tee_client_driver(d) \
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#define to_tee_client_driver(d) \
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container_of(d, struct tee_client_driver, driver)
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container_of(d, struct tee_client_driver, driver)
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/**
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* teedev_open() - Open a struct tee_device
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* @teedev: Device to open
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*
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* @return a pointer to struct tee_context on success or an ERR_PTR on failure.
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*/
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struct tee_context *teedev_open(struct tee_device *teedev);
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/**
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* teedev_close_context() - closes a struct tee_context
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* @ctx: The struct tee_context to close
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*/
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void teedev_close_context(struct tee_context *ctx);
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#endif /*__TEE_DRV_H*/
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#endif /*__TEE_DRV_H*/
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