da9030_battery: Don't use 0 as NULL

Noticed the new warning:

  CHECK   drivers/power/da9030_battery.c
drivers/power/da9030_battery.c:190:68: warning: Using plain integer as NULL pointer

This commit fixes the issue.

Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/power/da9030_battery.c b/drivers/power/da9030_battery.c
index 3fd3e95d2b8..94762e67e22 100644
--- a/drivers/power/da9030_battery.c
+++ b/drivers/power/da9030_battery.c
@@ -187,8 +187,8 @@ static const struct file_operations bat_debug_fops = {
 
 static struct dentry *da9030_bat_create_debugfs(struct da9030_charger *charger)
 {
-        charger->debug_file = debugfs_create_file("charger", 0666, 0, charger,
-                                                 &bat_debug_fops);
+        charger->debug_file = debugfs_create_file("charger", 0666, NULL,
+                                                  charger, &bat_debug_fops);
         return charger->debug_file;
 }