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crypto: crypto4xx - use devm in probe

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Allows removing some gotos and simplifying remove a bit.

Tested Cisco MX60W.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Rosen Penev 2024-10-10 12:48:21 -07:00 committed by Herbert Xu
parent 7337b18f1e
commit 0a53948477
1 changed files with 14 additions and 25 deletions
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39
drivers/crypto/amcc/crypto4xx_core.c
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@ -653,8 +653,6 @@ static void crypto4xx_stop_all(struct crypto4xx_core_device *core_dev)
crypto4xx_destroy_pdr(core_dev->dev);
crypto4xx_destroy_gdr(core_dev->dev);
crypto4xx_destroy_sdr(core_dev->dev);
kfree(core_dev->dev);
kfree(core_dev);
}
static u32 get_next_gd(u32 current)
@ -1368,16 +1366,17 @@ static int crypto4xx_probe(struct platform_device *ofdev)
of_node_put(np);
core_dev = kzalloc(sizeof(struct crypto4xx_core_device), GFP_KERNEL);
core_dev = devm_kzalloc(
&ofdev->dev, sizeof(struct crypto4xx_core_device), GFP_KERNEL);
if (!core_dev)
return -ENOMEM;
dev_set_drvdata(dev, core_dev);
core_dev->ofdev = ofdev;
core_dev->dev = kzalloc(sizeof(struct crypto4xx_device), GFP_KERNEL);
rc = -ENOMEM;
core_dev->dev = devm_kzalloc(
&ofdev->dev, sizeof(struct crypto4xx_device), GFP_KERNEL);
if (!core_dev->dev)
goto err_alloc_dev;
return -ENOMEM;
/*
* Older version of 460EX/GT have a hardware bug.
@ -1396,7 +1395,9 @@ static int crypto4xx_probe(struct platform_device *ofdev)
core_dev->dev->core_dev = core_dev;
core_dev->dev->is_revb = is_revb;
core_dev->device = dev;
mutex_init(&core_dev->rng_lock);
rc = devm_mutex_init(&ofdev->dev, &core_dev->rng_lock);
if (rc)
return rc;
spin_lock_init(&core_dev->lock);
INIT_LIST_HEAD(&core_dev->dev->alg_list);
ratelimit_default_init(&core_dev->dev->aead_ratelimit);
@ -1424,12 +1425,12 @@ static int crypto4xx_probe(struct platform_device *ofdev)
/* Register for Crypto isr, Crypto Engine IRQ */
core_dev->irq = irq_of_parse_and_map(ofdev->dev.of_node, 0);
rc = request_irq(core_dev->irq, is_revb ?
crypto4xx_ce_interrupt_handler_revb :
crypto4xx_ce_interrupt_handler, 0,
KBUILD_MODNAME, dev);
rc = devm_request_irq(&ofdev->dev, core_dev->irq,
is_revb ? crypto4xx_ce_interrupt_handler_revb :
crypto4xx_ce_interrupt_handler,
0, KBUILD_MODNAME, dev);
if (rc)
goto err_request_irq;
goto err_iomap;
/* need to setup pdr, rdr, gdr and sdr before this */
crypto4xx_hw_init(core_dev->dev);
@ -1438,25 +1439,17 @@ static int crypto4xx_probe(struct platform_device *ofdev)
rc = crypto4xx_register_alg(core_dev->dev, crypto4xx_alg,
ARRAY_SIZE(crypto4xx_alg));
if (rc)
goto err_start_dev;
goto err_iomap;
ppc4xx_trng_probe(core_dev);
return 0;
err_start_dev:
free_irq(core_dev->irq, dev);
err_request_irq:
irq_dispose_mapping(core_dev->irq);
err_iomap:
tasklet_kill(&core_dev->tasklet);
err_build_sdr:
crypto4xx_destroy_sdr(core_dev->dev);
crypto4xx_destroy_gdr(core_dev->dev);
crypto4xx_destroy_pdr(core_dev->dev);
kfree(core_dev->dev);
err_alloc_dev:
kfree(core_dev);
return rc;
}
@ -1467,13 +1460,9 @@ static void crypto4xx_remove(struct platform_device *ofdev)
ppc4xx_trng_remove(core_dev);
free_irq(core_dev->irq, dev);
irq_dispose_mapping(core_dev->irq);
tasklet_kill(&core_dev->tasklet);
/* Un-register with Linux CryptoAPI */
crypto4xx_unregister_alg(core_dev->dev);
mutex_destroy(&core_dev->rng_lock);
/* Free all allocated memory */
crypto4xx_stop_all(core_dev);
}