diff options
Diffstat (limited to 'drivers/crypto/nx/nx-842-pseries.c')
| -rw-r--r-- | drivers/crypto/nx/nx-842-pseries.c | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/drivers/crypto/nx/nx-842-pseries.c b/drivers/crypto/nx/nx-842-pseries.c index 85837e96e9a3..17f191777139 100644 --- a/drivers/crypto/nx/nx-842-pseries.c +++ b/drivers/crypto/nx/nx-842-pseries.c @@ -26,7 +26,6 @@ #include "nx-842.h" #include "nx_csbcpb.h" /* struct nx_csbcpb */ -#define MODULE_NAME NX842_PSERIES_MODULE_NAME MODULE_LICENSE("GPL"); MODULE_AUTHOR("Robert Jennings <rcj@linux.vnet.ibm.com>"); MODULE_DESCRIPTION("842 H/W Compression driver for IBM Power processors"); @@ -965,6 +964,7 @@ static struct attribute_group nx842_attribute_group = { }; static struct nx842_driver nx842_pseries_driver = { + .name = KBUILD_MODNAME, .owner = THIS_MODULE, .constraints = &nx842_pseries_constraints, .compress = nx842_pseries_compress, @@ -1033,8 +1033,6 @@ static int __init nx842_probe(struct vio_dev *viodev, goto error; } - nx842_register_driver(&nx842_pseries_driver); - return 0; error_unlock: @@ -1066,18 +1064,16 @@ static int __exit nx842_remove(struct vio_dev *viodev) kfree(old_devdata->counters); kfree(old_devdata); - nx842_unregister_driver(&nx842_pseries_driver); - return 0; } static struct vio_device_id nx842_vio_driver_ids[] = { - {NX842_PSERIES_COMPAT_NAME "-v1", NX842_PSERIES_COMPAT_NAME}, + {"ibm,compression-v1", "ibm,compression"}, {"", ""}, }; static struct vio_driver nx842_vio_driver = { - .name = MODULE_NAME, + .name = KBUILD_MODNAME, .probe = nx842_probe, .remove = __exit_p(nx842_remove), .get_desired_dma = nx842_get_desired_dma, @@ -1087,10 +1083,15 @@ static struct vio_driver nx842_vio_driver = { static int __init nx842_init(void) { struct nx842_devdata *new_devdata; + int ret; + pr_info("Registering IBM Power 842 compression driver\n"); BUILD_BUG_ON(sizeof(struct nx842_workmem) > NX842_MEM_COMPRESS); + if (!of_find_compatible_node(NULL, NULL, "ibm,compression")) + return -ENODEV; + RCU_INIT_POINTER(devdata, NULL); new_devdata = kzalloc(sizeof(*new_devdata), GFP_KERNEL); if (!new_devdata) { @@ -1100,7 +1101,21 @@ static int __init nx842_init(void) new_devdata->status = UNAVAILABLE; RCU_INIT_POINTER(devdata, new_devdata); - return vio_register_driver(&nx842_vio_driver); + ret = vio_register_driver(&nx842_vio_driver); + if (ret) { + pr_err("Could not register VIO driver %d\n", ret); + + kfree(new_devdata); + return ret; + } + + if (!nx842_platform_driver_set(&nx842_pseries_driver)) { + vio_unregister_driver(&nx842_vio_driver); + kfree(new_devdata); + return -EEXIST; + } + + return 0; } module_init(nx842_init); @@ -1111,6 +1126,7 @@ static void __exit nx842_exit(void) unsigned long flags; pr_info("Exiting IBM Power 842 compression driver\n"); + nx842_platform_driver_unset(&nx842_pseries_driver); spin_lock_irqsave(&devdata_mutex, flags); old_devdata = rcu_dereference_check(devdata, lockdep_is_held(&devdata_mutex)); @@ -1120,7 +1136,6 @@ static void __exit nx842_exit(void) if (old_devdata && old_devdata->dev) dev_set_drvdata(old_devdata->dev, NULL); kfree(old_devdata); - nx842_unregister_driver(&nx842_pseries_driver); vio_unregister_driver(&nx842_vio_driver); } |