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Subject[PATCH 09/12] crypto: caam - user devres to populate platform devices
Date
Use devres to de-initialize the RNG and drop explicit de-initialization
code in caam_remove().

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Horia Geantă <horia.geanta@nxp.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Iuliana Prodan <iuliana.prodan@nxp.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
drivers/crypto/caam/ctrl.c | 26 +++-----------------------
1 file changed, 3 insertions(+), 23 deletions(-)

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 37cd04f8ddb1..4a84c2701311 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -322,20 +322,6 @@ static int instantiate_rng(struct device *ctrldev, int state_handle_mask,
return ret;
}

-static int caam_remove(struct platform_device *pdev)
-{
- struct device *ctrldev;
- struct caam_drv_private *ctrlpriv;
-
- ctrldev = &pdev->dev;
- ctrlpriv = dev_get_drvdata(ctrldev);
-
- /* Remove platform devices under the crypto node */
- of_platform_depopulate(ctrldev);
-
- return 0;
-}
-
/*
* kick_trng - sets the various parameters for enabling the initialization
* of the RNG4 block in CAAM
@@ -762,7 +748,7 @@ static int caam_probe(struct platform_device *pdev)
#endif
}

- ret = of_platform_populate(nprop, caam_match, NULL, dev);
+ ret = devm_of_platform_populate(dev);
if (ret) {
dev_err(dev, "JR platform devices creation error\n");
return ret;
@@ -784,8 +770,7 @@ static int caam_probe(struct platform_device *pdev)
/* If no QI and no rings specified, quit and go home */
if ((!ctrlpriv->qi_present) && (!ctrlpriv->total_jobrs)) {
dev_err(dev, "no queues configured, terminating\n");
- ret = -ENOMEM;
- goto caam_remove;
+ return -ENOMEM;
}

if (ctrlpriv->era < 10)
@@ -848,7 +833,7 @@ static int caam_probe(struct platform_device *pdev)
} while ((ret == -EAGAIN) && (ent_delay < RTSDCTL_ENT_DLY_MAX));
if (ret) {
dev_err(dev, "failed to instantiate RNG");
- goto caam_remove;
+ return ret;
}
/*
* Set handles init'ed by this module as the complement of the
@@ -922,10 +907,6 @@ static int caam_probe(struct platform_device *pdev)
&ctrlpriv->ctl_tdsk_wrap);
#endif
return 0;
-
-caam_remove:
- caam_remove(pdev);
- return ret;
}

static struct platform_driver caam_driver = {
@@ -934,7 +915,6 @@ static struct platform_driver caam_driver = {
.of_match_table = caam_match,
},
.probe = caam_probe,
- .remove = caam_remove,
};

module_platform_driver(caam_driver);
--
2.21.0
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