crypto: caam - use devres to unmap memory

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>

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index db22777..35bf82d 100644 (file)
--- 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 @@ shutdown_qi:
        if (ctrlpriv->qi_init)
                caam_qi_shutdown(dev);
 #endif
-iounmap_ctrl:
-       iounmap(ctrl);
        return ret;
 }