[PATCH] ARM: mvebu: Use common error handling code in mvebu_armada_pm_init()

[SF Markus Elfring]

From: Markus Elfring <elfr...@users.sourceforge.net>
Date: Fri, 20 Oct 2017 14:50:47 +0200

Adjust jump targets so that a bit of exception handling can be better
reused at the end of this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfr...@users.sourceforge.net>
---
 arch/arm/mach-mvebu/pm-board.c | 35 ++++++++++++++++-------------------
 1 file changed, 16 insertions(+), 19 deletions(-)

diff --git a/arch/arm/mach-mvebu/pm-board.c b/arch/arm/mach-mvebu/pm-board.c
index db17121d7d63..bef248c76951 100644
--- a/arch/arm/mach-mvebu/pm-board.c
+++ b/arch/arm/mach-mvebu/pm-board.c
@@ -81,6 +81,7 @@ static int __init mvebu_armada_pm_init(void)
        struct device_node *np;
        struct device_node *gpio_ctrl_np;
        int ret = 0, i;
+       char *name;
 
        if (!of_machine_is_compatible("marvell,axp-gp"))
                return -ENODEV;
@@ -90,41 +91,32 @@ static int __init mvebu_armada_pm_init(void)
                return -ENODEV;
 
        for (i = 0; i < ARMADA_PIC_NR_GPIOS; i++) {
-               char *name;
                struct of_phandle_args args;
 
                pic_gpios[i] = of_get_named_gpio(np, "ctrl-gpios", i);
                if (pic_gpios[i] < 0) {
                        ret = -ENODEV;
-                       goto out;
+                       goto put_node;
                }
 
                name = kasprintf(GFP_KERNEL, "pic-pin%d", i);
                if (!name) {
                        ret = -ENOMEM;
-                       goto out;
+                       goto put_node;
                }
 
                ret = gpio_request(pic_gpios[i], name);
-               if (ret < 0) {
-                       kfree(name);
-                       goto out;
-               }
+               if (ret < 0)
+                       goto free_name;
 
                ret = gpio_direction_output(pic_gpios[i], 0);
-               if (ret < 0) {
-                       gpio_free(pic_gpios[i]);
-                       kfree(name);
-                       goto out;
-               }
+               if (ret < 0)
+                       goto free_gpio;
 
                ret = of_parse_phandle_with_fixed_args(np, "ctrl-gpios", 2,
                                                       i, &args);
-               if (ret < 0) {
-                       gpio_free(pic_gpios[i]);
-                       kfree(name);
-                       goto out;
-               }
+               if (ret < 0)
+                       goto free_gpio;
 
                gpio_ctrl_np = args.np;
                pic_raw_gpios[i] = args.args[0];
@@ -135,10 +127,15 @@ static int __init mvebu_armada_pm_init(void)
                return -ENOMEM;
 
        mvebu_pm_suspend_init(mvebu_armada_pm_enter);
-
-out:
+put_node:
        of_node_put(np);
        return ret;
+
+free_gpio:
+       gpio_free(pic_gpios[i]);
+free_name:
+       kfree(name);
+       goto put_node;
 }
 
 /*
-- 
2.14.2