OMAPDSS: use devm_ functions

The various devm_ functions allocate memory that is released when a driver
detaches.  This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

5 files changed, 23 insertions, 43 deletions

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index a5ec7f37c18..6fa866a83f1 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3322,7 +3322,8 @@ static int omap_dispchw_probe(struct platform_device *pdev)
                 r = -EINVAL;
                 goto err_ioremap;
         }
-        dispc.base = ioremap(dispc_mem->start, resource_size(dispc_mem));
+        dispc.base = devm_ioremap(&pdev->dev, dispc_mem->start,
+                                  resource_size(dispc_mem));
         if (!dispc.base) {
                 DSSERR("can't ioremap DISPC\n");
                 r = -ENOMEM;
@@ -3332,14 +3333,14 @@ static int omap_dispchw_probe(struct platform_device *pdev)
         if (dispc.irq < 0) {
                 DSSERR("platform_get_irq failed\n");
                 r = -ENODEV;
-                goto err_irq;
+                goto err_ioremap;
         }
 
-        r = request_irq(dispc.irq, omap_dispc_irq_handler, IRQF_SHARED,
-                "OMAP DISPC", dispc.pdev);
+        r = devm_request_irq(&pdev->dev, dispc.irq, omap_dispc_irq_handler,
+                             IRQF_SHARED, "OMAP DISPC", dispc.pdev);
         if (r < 0) {
                 DSSERR("request_irq failed\n");
-                goto err_irq;
+                goto err_ioremap;
         }
 
         pm_runtime_enable(&pdev->dev);
@@ -3362,9 +3363,6 @@ static int omap_dispchw_probe(struct platform_device *pdev)
 
 err_runtime_get:
         pm_runtime_disable(&pdev->dev);
-        free_irq(dispc.irq, dispc.pdev);
-err_irq:
-        iounmap(dispc.base);
 err_ioremap:
         clk_put(dispc.dss_clk);
 err_get_clk:
@@ -3377,8 +3375,6 @@ static int omap_dispchw_remove(struct platform_device *pdev)
 
         clk_put(dispc.dss_clk);
 
-        free_irq(dispc.irq, dispc.pdev);
-        iounmap(dispc.base);
         return 0;
 }
 
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index d4d676c82c1..52b93597730 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -4695,7 +4695,7 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
         struct resource *dsi_mem;
         struct dsi_data *dsi;
 
-        dsi = kzalloc(sizeof(*dsi), GFP_KERNEL);
+        dsi = devm_kzalloc(&dsidev->dev, sizeof(*dsi), GFP_KERNEL);
         if (!dsi) {
                 r = -ENOMEM;
                 goto err_alloc;
@@ -4724,7 +4724,7 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
 
         r = dsi_get_clocks(dsidev);
         if (r)
-                goto err_get_clk;
+                goto err_alloc;
 
         pm_runtime_enable(&dsidev->dev);
 
@@ -4742,7 +4742,8 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
                 r = -EINVAL;
                 goto err_ioremap;
         }
-        dsi->base = ioremap(dsi_mem->start, resource_size(dsi_mem));
+        dsi->base = devm_ioremap(&dsidev->dev, dsi_mem->start,
+                                 resource_size(dsi_mem));
         if (!dsi->base) {
                 DSSERR("can't ioremap DSI\n");
                 r = -ENOMEM;
@@ -4752,14 +4753,14 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
         if (dsi->irq < 0) {
                 DSSERR("platform_get_irq failed\n");
                 r = -ENODEV;
-                goto err_get_irq;
+                goto err_ioremap;
         }
 
-        r = request_irq(dsi->irq, omap_dsi_irq_handler, IRQF_SHARED,
-                dev_name(&dsidev->dev), dsi->pdev);
+        r = devm_request_irq(&dsidev->dev, dsi->irq, omap_dsi_irq_handler,
+                             IRQF_SHARED, dev_name(&dsidev->dev), dsi->pdev);
         if (r < 0) {
                 DSSERR("request_irq failed\n");
-                goto err_get_irq;
+                goto err_ioremap;
         }
 
         /* DSI VCs initialization */
@@ -4773,7 +4774,7 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
 
         r = dsi_runtime_get(dsidev);
         if (r)
-                goto err_get_dsi;
+                goto err_ioremap;
 
         rev = dsi_read_reg(dsidev, DSI_REVISION);
         dev_dbg(&dsidev->dev, "OMAP DSI rev %d.%d\n",
@@ -4791,14 +4792,8 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
 
         return 0;
 
-err_get_dsi:
-        free_irq(dsi->irq, dsi->pdev);
-err_get_irq:
-        iounmap(dsi->base);
 err_ioremap:
         pm_runtime_disable(&dsidev->dev);
-err_get_clk:
-        kfree(dsi);
 err_alloc:
         return r;
 }
@@ -4823,11 +4818,6 @@ static int omap_dsihw_remove(struct platform_device *dsidev)
                 dsi->vdds_dsi_reg = NULL;
         }
 
-        free_irq(dsi->irq, dsi->pdev);
-        iounmap(dsi->base);
-
-        kfree(dsi);
-
         return 0;
 }
 
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 17033457ee8..e75f837c766 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -751,7 +751,8 @@ static int omap_dsshw_probe(struct platform_device *pdev)
                 r = -EINVAL;
                 goto err_ioremap;
         }
-        dss.base = ioremap(dss_mem->start, resource_size(dss_mem));
+        dss.base = devm_ioremap(&pdev->dev, dss_mem->start,
+                                resource_size(dss_mem));
         if (!dss.base) {
                 DSSERR("can't ioremap DSS\n");
                 r = -ENOMEM;
@@ -760,7 +761,7 @@ static int omap_dsshw_probe(struct platform_device *pdev)
 
         r = dss_get_clocks();
         if (r)
-                goto err_clocks;
+                goto err_ioremap;
 
         pm_runtime_enable(&pdev->dev);
 
@@ -808,8 +809,6 @@ err_dpi:
 err_runtime_get:
         pm_runtime_disable(&pdev->dev);
         dss_put_clocks();
-err_clocks:
-        iounmap(dss.base);
 err_ioremap:
         return r;
 }
@@ -819,8 +818,6 @@ static int omap_dsshw_remove(struct platform_device *pdev)
         dpi_exit();
         sdi_exit();
 
-        iounmap(dss.base);
-
         pm_runtime_disable(&pdev->dev);
 
         dss_put_clocks();
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index 814bb9500dc..159e914063c 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -925,7 +925,8 @@ static int omap_rfbihw_probe(struct platform_device *pdev)
                 r = -EINVAL;
                 goto err_ioremap;
         }
-        rfbi.base = ioremap(rfbi_mem->start, resource_size(rfbi_mem));
+        rfbi.base = devm_ioremap(&pdev->dev, rfbi_mem->start,
+                                 resource_size(rfbi_mem));
         if (!rfbi.base) {
                 DSSERR("can't ioremap RFBI\n");
                 r = -ENOMEM;
@@ -963,7 +964,6 @@ err_get_ick:
         rfbi_runtime_put();
 err_get_rfbi:
         pm_runtime_disable(&pdev->dev);
-        iounmap(rfbi.base);
 err_ioremap:
         return r;
 }
@@ -971,7 +971,6 @@ err_ioremap:
 static int omap_rfbihw_remove(struct platform_device *pdev)
 {
         pm_runtime_disable(&pdev->dev);
-        iounmap(rfbi.base);
         return 0;
 }
 
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index 82865bec945..4172232cdec 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -798,7 +798,8 @@ static int omap_venchw_probe(struct platform_device *pdev)
                 r = -EINVAL;
                 goto err_ioremap;
         }
-        venc.base = ioremap(venc_mem->start, resource_size(venc_mem));
+        venc.base = devm_ioremap(&pdev->dev, venc_mem->start,
+                                 resource_size(venc_mem));
         if (!venc.base) {
                 DSSERR("can't ioremap VENC\n");
                 r = -ENOMEM;
@@ -807,7 +808,7 @@ static int omap_venchw_probe(struct platform_device *pdev)
 
         r = venc_get_clocks(pdev);
         if (r)
-                goto err_get_clk;
+                goto err_ioremap;
 
         pm_runtime_enable(&pdev->dev);
 
@@ -825,8 +826,6 @@ static int omap_venchw_probe(struct platform_device *pdev)
 err_get_venc:
         pm_runtime_disable(&pdev->dev);
         venc_put_clocks();
-err_get_clk:
-        iounmap(venc.base);
 err_ioremap:
         return r;
 }
@@ -842,7 +841,6 @@ static int omap_venchw_remove(struct platform_device *pdev)
         pm_runtime_disable(&pdev->dev);
         venc_put_clocks();
 
-        iounmap(venc.base);
         return 0;
 }