This patch use devm_extcon_dev_allocate() to simplify the memory control
of extcon device.

Cc: Charles Keepax <ckee...@opensource.wolfsonmicro.com>
Cc: Mark Brown <broo...@kernel.org>
Cc: patc...@opensource.wolfsonmicro.com
Signed-off-by: Chanwoo Choi <cw00.c...@samsung.com>
---
 drivers/extcon/extcon-arizona.c | 35 ++++++++++++++++++++---------------
 1 file changed, 20 insertions(+), 15 deletions(-)

diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 98a14f6..39a15df 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -91,7 +91,7 @@ struct arizona_extcon_info {
 
        int hpdet_ip;
 
-       struct extcon_dev edev;
+       struct extcon_dev *edev;
 };
 
 static const struct arizona_micd_config micd_default_modes[] = {
@@ -546,7 +546,7 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
        }
 
        /* If the cable was removed while measuring ignore the result */
-       ret = extcon_get_cable_state_(&info->edev, ARIZONA_CABLE_MECHANICAL);
+       ret = extcon_get_cable_state_(info->edev, ARIZONA_CABLE_MECHANICAL);
        if (ret < 0) {
                dev_err(arizona->dev, "Failed to check cable state: %d\n",
                        ret);
@@ -581,7 +581,7 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
        else
                report = ARIZONA_CABLE_HEADPHONE;
 
-       ret = extcon_set_cable_state_(&info->edev, report, true);
+       ret = extcon_set_cable_state_(info->edev, report, true);
        if (ret != 0)
                dev_err(arizona->dev, "Failed to report HP/line: %d\n",
                        ret);
@@ -664,7 +664,7 @@ err:
                           ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC);
 
        /* Just report headphone */
-       ret = extcon_update_state(&info->edev,
+       ret = extcon_update_state(info->edev,
                                  1 << ARIZONA_CABLE_HEADPHONE,
                                  1 << ARIZONA_CABLE_HEADPHONE);
        if (ret != 0)
@@ -723,7 +723,7 @@ err:
                           ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC);
 
        /* Just report headphone */
-       ret = extcon_update_state(&info->edev,
+       ret = extcon_update_state(info->edev,
                                  1 << ARIZONA_CABLE_HEADPHONE,
                                  1 << ARIZONA_CABLE_HEADPHONE);
        if (ret != 0)
@@ -764,7 +764,7 @@ static void arizona_micd_detect(struct work_struct *work)
        mutex_lock(&info->lock);
 
        /* If the cable was removed while measuring ignore the result */
-       ret = extcon_get_cable_state_(&info->edev, ARIZONA_CABLE_MECHANICAL);
+       ret = extcon_get_cable_state_(info->edev, ARIZONA_CABLE_MECHANICAL);
        if (ret < 0) {
                dev_err(arizona->dev, "Failed to check cable state: %d\n",
                                ret);
@@ -812,7 +812,7 @@ static void arizona_micd_detect(struct work_struct *work)
        if (info->detecting && (val & ARIZONA_MICD_LVL_8)) {
                arizona_identify_headphone(info);
 
-               ret = extcon_update_state(&info->edev,
+               ret = extcon_update_state(info->edev,
                                          1 << ARIZONA_CABLE_MICROPHONE,
                                          1 << ARIZONA_CABLE_MICROPHONE);
 
@@ -999,7 +999,7 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
 
        if (info->last_jackdet == present) {
                dev_dbg(arizona->dev, "Detected jack\n");
-               ret = extcon_set_cable_state_(&info->edev,
+               ret = extcon_set_cable_state_(info->edev,
                                              ARIZONA_CABLE_MECHANICAL, true);
 
                if (ret != 0)
@@ -1038,7 +1038,7 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
                                         info->micd_ranges[i].key, 0);
                input_sync(info->input);
 
-               ret = extcon_update_state(&info->edev, 0xffffffff, 0);
+               ret = extcon_update_state(info->edev, 0xffffffff, 0);
                if (ret != 0)
                        dev_err(arizona->dev, "Removal report failed: %d\n",
                                ret);
@@ -1151,11 +1151,16 @@ static int arizona_extcon_probe(struct platform_device 
*pdev)
                break;
        }
 
-       info->edev.name = "Headset Jack";
-       info->edev.dev.parent = arizona->dev;
-       info->edev.supported_cable = arizona_cable;
+       info->edev = devm_extcon_dev_allocate(&pdev->dev, arizona_cable);
+       if (!info->edev) {
+               dev_err(&pdev->dev, "failed to allocate extcon device\n");
+               ret = -ENOMEM;
+               goto err;
+       }
+       info->edev->dev.parent = arizona->dev;
+       info->edev->name = "Headset Jack";
 
-       ret = extcon_dev_register(&info->edev);
+       ret = extcon_dev_register(info->edev);
        if (ret < 0) {
                dev_err(arizona->dev, "extcon_dev_register() failed: %d\n",
                        ret);
@@ -1410,7 +1415,7 @@ err_rise:
 err_input:
 err_register:
        pm_runtime_disable(&pdev->dev);
-       extcon_dev_unregister(&info->edev);
+       extcon_dev_unregister(info->edev);
 err:
        return ret;
 }
@@ -1445,7 +1450,7 @@ static int arizona_extcon_remove(struct platform_device 
*pdev)
        regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE,
                           ARIZONA_JD1_ENA, 0);
        arizona_clk32k_disable(arizona);
-       extcon_dev_unregister(&info->edev);
+       extcon_dev_unregister(info->edev);
 
        return 0;
 }
-- 
1.8.0

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