Merge remote-tracking branches 'asoc/fix/blackfin', 'asoc/fix/da9055', 'asoc/fix...

[firefly-linux-kernel-4.4.55.git] / drivers / pinctrl / core.c

diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 5ee61a470016fa8f2753cf21fc2e6ff0966d8d78..c0fe6091566a4766cffbe515ed796fe7e2a3bee5 100644 (file)
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -851,7 +851,9 @@ static struct pinctrl *create_pinctrl(struct device *dev)
        kref_init(&p->users);
 
        /* Add the pinctrl handle to the global list */
+       mutex_lock(&pinctrl_list_mutex);
        list_add_tail(&p->node, &pinctrl_list);
+       mutex_unlock(&pinctrl_list_mutex);
 
        return p;
 }
@@ -1642,8 +1644,10 @@ static void pinctrl_init_device_debugfs(struct pinctrl_dev *pctldev)
                            device_root, pctldev, &pinctrl_groups_ops);
        debugfs_create_file("gpio-ranges", S_IFREG | S_IRUGO,
                            device_root, pctldev, &pinctrl_gpioranges_ops);
-       pinmux_init_device_debugfs(device_root, pctldev);
-       pinconf_init_device_debugfs(device_root, pctldev);
+       if (pctldev->desc->pmxops)
+               pinmux_init_device_debugfs(device_root, pctldev);
+       if (pctldev->desc->confops)
+               pinconf_init_device_debugfs(device_root, pctldev);
 }
 
 static void pinctrl_remove_device_debugfs(struct pinctrl_dev *pctldev)