regulator: Clean up debugfs error handling a bit

Use IS_ERR_OR_NULL() rather than open coding it and ignore errors from
failure to create the supply map.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 4 insertions, 5 deletions

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 6c845200a530..81ea66dcca9c 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2712,7 +2712,7 @@ static void rdev_init_debugfs(struct regulator_dev *rdev)
 {
 #ifdef CONFIG_DEBUG_FS
         rdev->debugfs = debugfs_create_dir(rdev_get_name(rdev), debugfs_root);
-        if (IS_ERR(rdev->debugfs) || !rdev->debugfs) {
+        if (IS_ERR_OR_NULL(rdev->debugfs)) {
                 rdev_warn(rdev, "Failed to create debugfs directory\n");
                 rdev->debugfs = NULL;
                 return;
@@ -3127,14 +3127,13 @@ static int __init regulator_init(void)
 
 #ifdef CONFIG_DEBUG_FS
         debugfs_root = debugfs_create_dir("regulator", NULL);
-        if (IS_ERR(debugfs_root) || !debugfs_root) {
+        if (IS_ERR_OR_NULL(debugfs_root)) {
                 pr_warn("regulator: Failed to create debugfs directory\n");
                 debugfs_root = NULL;
         }
 
-        if (IS_ERR(debugfs_create_file("supply_map", 0444, debugfs_root,
-                                       NULL, &supply_map_fops)))
-                pr_warn("regulator: Failed to create supplies debugfs\n");
+        debugfs_create_file("supply_map", 0444, debugfs_root, NULL,
+                            &supply_map_fops);
 #endif
 
         regulator_dummy_init();