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Subject[PATCH 05/12] crypto: caam - use devres to unmap memory
Date
Use devres to unmap memory and drop corresponding iounmap() call.

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 | 28 +++++++++-------------------
1 file changed, 9 insertions(+), 19 deletions(-)

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index db22777d59b4..35bf82d1bedc 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -308,11 +308,9 @@ static int caam_remove(struct platform_device *pdev)
{
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_device *pdev)
debugfs_remove_recursive(ctrlpriv->dfs_root);
#endif

- /* Unmap controller region */
- iounmap(ctrl);
-
return 0;
}

@@ -611,10 +606,11 @@ static int caam_probe(struct platform_device *pdev)

/* 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_device *pdev)
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
@@ -722,7 +714,7 @@ static int caam_probe(struct platform_device *pdev)
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);
@@ -927,8 +919,6 @@ static int caam_probe(struct platform_device *pdev)
if (ctrlpriv->qi_init)
caam_qi_shutdown(dev);
#endif
-iounmap_ctrl:
- iounmap(ctrl);
return ret;
}

--
2.21.0
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