soc: brcmstb: Unmap sun_top_ctrl_base on errors

Do not leak a ioremap()'d cookie around, unmaping it in case of errors

Fixes: cef4bafcea2c ("soc: brcmstb: add SoC driver to brcmstb")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/drivers/soc/brcmstb/common.c b/drivers/soc/brcmstb/common.c
index daf86ac..94e7335 100644 (file)
--- a/drivers/soc/brcmstb/common.c
+++ b/drivers/soc/brcmstb/common.c
@@ -51,6 +51,7 @@ static int __init brcmstb_soc_device_init(void)
        struct soc_device *soc_dev;
        struct device_node *sun_top_ctrl;
        void __iomem *sun_top_ctrl_base;
+       int ret = 0;
 
        sun_top_ctrl = of_find_matching_node(NULL, sun_top_ctrl_match);
        if (!sun_top_ctrl)
@@ -64,8 +65,10 @@ static int __init brcmstb_soc_device_init(void)
        product_id = readl(sun_top_ctrl_base + 0x4);
 
        soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
-       if (!soc_dev_attr)
-               return -ENOMEM;
+       if (!soc_dev_attr) {
+               ret = -ENOMEM;
+               goto out;
+       }
 
        soc_dev_attr->family = kasprintf(GFP_KERNEL, "%x",
                                         family_id >> 28 ?
@@ -83,9 +86,14 @@ static int __init brcmstb_soc_device_init(void)
                kfree(soc_dev_attr->soc_id);
                kfree(soc_dev_attr->revision);
                kfree(soc_dev_attr);
-               return -ENODEV;
+               ret = -ENODEV;
+               goto out;
        }
 
        return 0;
+
+out:
+       iounmap(sun_top_ctrl_base);
+       return ret;
 }
 arch_initcall(brcmstb_soc_device_init);