OMAP3/4: l3: fix omap3_l3_probe error path

l3_smx:
- Add missing free_irq and remove an empty goto label.

l3_noc:
- If kzalloc fails driver shouldn't continue with a NULL pointer.
- Add missing free_irq and remove empty goto labels.
- Safe to assume that if we reached the end point of execution
  without errors, then return value is 0, so replacing instead
  another goto.

Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/mach-omap2/omap_l3_noc.c b/arch/arm/mach-omap2/omap_l3_noc.c
index 82632c2..def3de8 100644 (file)
--- a/arch/arm/mach-omap2/omap_l3_noc.c
+++ b/arch/arm/mach-omap2/omap_l3_noc.c
@@ -132,49 +132,49 @@ static int __init omap4_l3_probe(struct platform_device *pdev)
 
        l3 = kzalloc(sizeof(*l3), GFP_KERNEL);
        if (!l3)
-               ret = -ENOMEM;
+               return -ENOMEM;
 
        platform_set_drvdata(pdev, l3);
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        if (!res) {
                dev_err(&pdev->dev, "couldn't find resource 0\n");
                ret = -ENODEV;
-               goto err1;
+               goto err0;
        }
 
        l3->l3_base[0] = ioremap(res->start, resource_size(res));
        if (!(l3->l3_base[0])) {
                dev_err(&pdev->dev, "ioremap failed\n");
                ret = -ENOMEM;
-               goto err2;
+               goto err0;
        }
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
        if (!res) {
                dev_err(&pdev->dev, "couldn't find resource 1\n");
                ret = -ENODEV;
-               goto err3;
+               goto err1;
        }
 
        l3->l3_base[1] = ioremap(res->start, resource_size(res));
        if (!(l3->l3_base[1])) {
                dev_err(&pdev->dev, "ioremap failed\n");
                ret = -ENOMEM;
-               goto err4;
+               goto err1;
        }
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
        if (!res) {
                dev_err(&pdev->dev, "couldn't find resource 2\n");
                ret = -ENODEV;
-               goto err5;
+               goto err2;
        }
 
        l3->l3_base[2] = ioremap(res->start, resource_size(res));
        if (!(l3->l3_base[2])) {
                dev_err(&pdev->dev, "ioremap failed\n");
                ret = -ENOMEM;
-               goto err6;
+               goto err2;
        }
 
        /*
@@ -187,7 +187,7 @@ static int __init omap4_l3_probe(struct platform_device *pdev)
        if (ret) {
                pr_crit("L3: request_irq failed to register for 0x%x\n",
                                         OMAP44XX_IRQ_L3_DBG);
-               goto err7;
+               goto err3;
        }
        l3->debug_irq = irq;
 
@@ -198,24 +198,22 @@ static int __init omap4_l3_probe(struct platform_device *pdev)
        if (ret) {
                pr_crit("L3: request_irq failed to register for 0x%x\n",
                                         OMAP44XX_IRQ_L3_APP);
-               goto err8;
+               goto err4;
        }
        l3->app_irq = irq;
 
-       goto err0;
-err8:
-err7:
-       iounmap(l3->l3_base[2]);
-err6:
-err5:
-       iounmap(l3->l3_base[1]);
+       return 0;
+
 err4:
+       free_irq(l3->debug_irq, l3);
 err3:
-       iounmap(l3->l3_base[0]);
+       iounmap(l3->l3_base[2]);
 err2:
+       iounmap(l3->l3_base[1]);
 err1:
-       kfree(l3);
+       iounmap(l3->l3_base[0]);
 err0:
+       kfree(l3);
        return ret;
 }
 

diff --git a/arch/arm/mach-omap2/omap_l3_smx.c b/arch/arm/mach-omap2/omap_l3_smx.c
index 5f2da75..45aaa5c 100644 (file)
--- a/arch/arm/mach-omap2/omap_l3_smx.c
+++ b/arch/arm/mach-omap2/omap_l3_smx.c
@@ -228,10 +228,8 @@ static int __init omap3_l3_probe(struct platform_device *pdev)
        int                     ret;
 
        l3 = kzalloc(sizeof(*l3), GFP_KERNEL);
-       if (!l3) {
-               ret = -ENOMEM;
-               goto err0;
-       }
+       if (!l3)
+               return -ENOMEM;
 
        platform_set_drvdata(pdev, l3);
 
@@ -239,13 +237,13 @@ static int __init omap3_l3_probe(struct platform_device *pdev)
        if (!res) {
                dev_err(&pdev->dev, "couldn't find resource\n");
                ret = -ENODEV;
-               goto err1;
+               goto err0;
        }
        l3->rt = ioremap(res->start, resource_size(res));
        if (!(l3->rt)) {
                dev_err(&pdev->dev, "ioremap failed\n");
                ret = -ENOMEM;
-               goto err2;
+               goto err0;
        }
 
        l3->debug_irq = platform_get_irq(pdev, 0);
@@ -254,7 +252,7 @@ static int __init omap3_l3_probe(struct platform_device *pdev)
                "l3-debug-irq", l3);
        if (ret) {
                dev_err(&pdev->dev, "couldn't request debug irq\n");
-               goto err3;
+               goto err1;
        }
 
        l3->app_irq = platform_get_irq(pdev, 1);
@@ -264,18 +262,17 @@ static int __init omap3_l3_probe(struct platform_device *pdev)
 
        if (ret) {
                dev_err(&pdev->dev, "couldn't request app irq\n");
-               goto err4;
+               goto err2;
        }
 
-       goto err0;
+       return 0;
 
-err4:
-err3:
-       iounmap(l3->rt);
 err2:
+       free_irq(l3->debug_irq, l3);
 err1:
-       kfree(l3);
+       iounmap(l3->rt);
 err0:
+       kfree(l3);
        return ret;
 }