diff options
author | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-02-18 18:28:37 +0300 |
---|---|---|
committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-02-18 18:28:37 +0300 |
commit | 65d2918e716afb89359cfa59734d76c1ff8700cb (patch) | |
tree | 4685404f96642243d62c3a1a823340913d087090 /drivers/char/tpm/tpm_ibmvtpm.c | |
parent | bf40e5561fd288a505d5d8d8bf45eef96fe7253d (diff) | |
parent | 338d00cfef07d74a072f96821c64b20f98517d72 (diff) | |
download | linux-65d2918e716afb89359cfa59734d76c1ff8700cb.tar.xz |
Merge branch 'cleanups'
Merge cleanups requested by Linus.
* cleanups: (3 commits)
pnfs: Refactor the *_layout_mark_request_commit to use pnfs_layout_mark_request_commit
nfs: Can call nfs_clear_page_commit() instead
nfs: Provide and use helper functions for marking a page as unstable
Diffstat (limited to 'drivers/char/tpm/tpm_ibmvtpm.c')
-rw-r--r-- | drivers/char/tpm/tpm_ibmvtpm.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c index af74c57e5090..0840347e251c 100644 --- a/drivers/char/tpm/tpm_ibmvtpm.c +++ b/drivers/char/tpm/tpm_ibmvtpm.c @@ -1,7 +1,7 @@ /* * Copyright (C) 2012 IBM Corporation * - * Author: Ashley Lai <adlai@us.ibm.com> + * Author: Ashley Lai <ashleydlai@gmail.com> * * Maintained by: <tpmdd-devel@lists.sourceforge.net> * @@ -270,8 +270,11 @@ static int ibmvtpm_crq_send_init(struct ibmvtpm_dev *ibmvtpm) static int tpm_ibmvtpm_remove(struct vio_dev *vdev) { struct ibmvtpm_dev *ibmvtpm = ibmvtpm_get_data(&vdev->dev); + struct tpm_chip *chip = dev_get_drvdata(ibmvtpm->dev); int rc = 0; + tpm_chip_unregister(chip); + free_irq(vdev->irq, ibmvtpm); do { @@ -290,8 +293,6 @@ static int tpm_ibmvtpm_remove(struct vio_dev *vdev) kfree(ibmvtpm->rtce_buf); } - tpm_remove_hardware(ibmvtpm->dev); - kfree(ibmvtpm); return 0; @@ -307,6 +308,14 @@ static int tpm_ibmvtpm_remove(struct vio_dev *vdev) static unsigned long tpm_ibmvtpm_get_desired_dma(struct vio_dev *vdev) { struct ibmvtpm_dev *ibmvtpm = ibmvtpm_get_data(&vdev->dev); + + /* ibmvtpm initializes at probe time, so the data we are + * asking for may not be set yet. Estimate that 4K required + * for TCE-mapped buffer in addition to CRQ. + */ + if (!ibmvtpm) + return CRQ_RES_BUF_SIZE + PAGE_SIZE; + return CRQ_RES_BUF_SIZE + ibmvtpm->rtce_size; } @@ -555,11 +564,9 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev, struct tpm_chip *chip; int rc = -ENOMEM, rc1; - chip = tpm_register_hardware(dev, &tpm_ibmvtpm); - if (!chip) { - dev_err(dev, "tpm_register_hardware failed\n"); - return -ENODEV; - } + chip = tpmm_chip_alloc(dev, &tpm_ibmvtpm); + if (IS_ERR(chip)) + return PTR_ERR(chip); ibmvtpm = kzalloc(sizeof(struct ibmvtpm_dev), GFP_KERNEL); if (!ibmvtpm) { @@ -629,7 +636,7 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev, if (rc) goto init_irq_cleanup; - return rc; + return tpm_chip_register(chip); init_irq_cleanup: do { rc1 = plpar_hcall_norets(H_FREE_CRQ, vio_dev->unit_address); @@ -644,8 +651,6 @@ cleanup: kfree(ibmvtpm); } - tpm_remove_hardware(dev); - return rc; } |