extcon: ptn5150: Add queue work sync before driver release

Add device managed action to sync pending queue work, otherwise
the queued work may run after the work is destroyed.

Fixes: 4ed754de2d66 ("extcon: Add support for ptn5150 extcon driver")
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

diff --git a/drivers/extcon/extcon-ptn5150.c b/drivers/extcon/extcon-ptn5150.c
index 5b9a3cf..2a78741 100644 (file)
--- a/drivers/extcon/extcon-ptn5150.c
+++ b/drivers/extcon/extcon-ptn5150.c
@@ -194,6 +194,13 @@ static int ptn5150_init_dev_type(struct ptn5150_info *info)
        return 0;
 }
 
+static void ptn5150_work_sync_and_put(void *data)
+{
+       struct ptn5150_info *info = data;
+
+       cancel_work_sync(&info->irq_work);
+}
+
 static int ptn5150_i2c_probe(struct i2c_client *i2c)
 {
        struct device *dev = &i2c->dev;
@@ -284,6 +291,10 @@ static int ptn5150_i2c_probe(struct i2c_client *i2c)
        if (ret)
                return -EINVAL;
 
+       ret = devm_add_action_or_reset(dev, ptn5150_work_sync_and_put, info);
+       if (ret)
+               return ret;
+
        /*
         * Update current extcon state if for example OTG connection was there
         * before the probe