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From 76087c548649ea0fae04a0538f9de12546c5c680 Mon Sep 17 00:00:00 2001
From: Andrey Smirnov <andrew.smirnov@gmail.com>
Date: Tue, 22 Oct 2019 08:30:08 -0700
Subject: [PATCH] crypto: caam - use devres to unmap memory
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Use devres to unmap memory and drop corresponding iounmap() call.
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>
(cherry picked from commit 66e93b28075d3cae568ed97ef78789afa5a6eb36)
---
drivers/crypto/caam/ctrl.c | 28 +++++++++-------------------
1 file changed, 9 insertions(+), 19 deletions(-)
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -308,11 +308,9 @@ static int caam_remove(struct platform_d
{
struct device *ctrldev;
struct caam_drv_private *ctrlpriv;
- struct caam_ctrl __iomem *ctrl;
ctrldev = &pdev->dev;
ctrlpriv = dev_get_drvdata(ctrldev);
- ctrl = (struct caam_ctrl __iomem *)ctrlpriv->ctrl;
/* Remove platform devices under the crypto node */
of_platform_depopulate(ctrldev);
@@ -334,9 +332,6 @@ static int caam_remove(struct platform_d
debugfs_remove_recursive(ctrlpriv->dfs_root);
#endif
- /* Unmap controller region */
- iounmap(ctrl);
-
return 0;
}
@@ -611,10 +606,11 @@ static int caam_probe(struct platform_de
/* Get configuration properties from device tree */
/* First, get register page */
- ctrl = of_iomap(nprop, 0);
- if (!ctrl) {
+ ctrl = devm_of_iomap(dev, nprop, 0, NULL);
+ ret = PTR_ERR_OR_ZERO(ctrl);
+ if (ret) {
dev_err(dev, "caam: of_iomap() failed\n");
- return -ENOMEM;
+ return ret;
}
caam_little_end = !(bool)(rd_reg32(&ctrl->perfmon.status) &
@@ -632,22 +628,18 @@ static int caam_probe(struct platform_de
if (ctrlpriv->qi_present && !caam_dpaa2) {
ret = qman_is_probed();
if (!ret) {
- ret = -EPROBE_DEFER;
- goto iounmap_ctrl;
+ return -EPROBE_DEFER;
} else if (ret < 0) {
dev_err(dev, "failing probe due to qman probe error\n");
- ret = -ENODEV;
- goto iounmap_ctrl;
+ return -ENODEV;
}
ret = qman_portals_probed();
if (!ret) {
- ret = -EPROBE_DEFER;
- goto iounmap_ctrl;
+ return -EPROBE_DEFER;
} else if (ret < 0) {
dev_err(dev, "failing probe due to qman portals probe error\n");
- ret = -ENODEV;
- goto iounmap_ctrl;
+ return -ENODEV;
}
}
#endif
@@ -720,7 +712,7 @@ static int caam_probe(struct platform_de
ret = dma_set_mask_and_coherent(dev, caam_get_dma_mask(dev));
if (ret) {
dev_err(dev, "dma_set_mask_and_coherent failed (%d)\n", ret);
- goto iounmap_ctrl;
+ return ret;
}
ctrlpriv->era = caam_get_era(ctrl);
@@ -925,8 +917,6 @@ shutdown_qi:
if (ctrlpriv->qi_init)
caam_qi_shutdown(dev);
#endif
-iounmap_ctrl:
- iounmap(ctrl);
return ret;
}
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