mmc: core: use kobj_to_dev()

Use kobj_to_dev() instead of open-coding it.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Link: https://lore.kernel.org/r/20220425105339.3515368-1-chi.minghao@zte.com.cn
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 6cb701aa1abc96c7a6e56d7b0b1a9e6a781d8103..9def975df52b31b9a777f3b110ac1ec9b512566d 100644 (file)
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -330,7 +330,7 @@ static struct attribute *mmc_disk_attrs[] = {
 static umode_t mmc_disk_attrs_is_visible(struct kobject *kobj,
                struct attribute *a, int n)
 {
-       struct device *dev = container_of(kobj, struct device, kobj);
+       struct device *dev = kobj_to_dev(kobj);
        struct mmc_blk_data *md = mmc_blk_get(dev_to_disk(dev));
        umode_t mode = a->mode;