crypto: caam - use devres to populate platform devices

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>
Reviewed-by: Horia Geantă <horia.geanta@nxp.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
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 7cdb48c..0540df5 100644 (file)
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -321,20 +321,6 @@ 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
@@ -761,7 +747,7 @@ 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;
@@ -783,8 +769,7 @@ 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)
@@ -847,7 +832,7 @@ 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
@@ -921,10 +906,6 @@ 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 = {
@@ -933,7 +914,6 @@ static struct platform_driver caam_driver = {
                .of_match_table = caam_match,
        },
        .probe       = caam_probe,
-       .remove      = caam_remove,
 };
 
 module_platform_driver(caam_driver);