[PATCH v2] PM / devfreq: userspace: Fix memory leak in userspace_init()

[Malaya Kumar Rout <malayarout91@gmail.com>]

Fix a memory leak in the userspace_init() function where allocated
memory is not freed when sysfs_create_group() fails.

When sysfs_create_group() fails, the function returns without freeing
the memory allocated for 'data', leading to a memory leak. This patch
adds proper error handling to free the allocated memory and reset
governor_data to NULL on failure.

v2:
- Removed redundant 'out:' goto label and returned -ENOMEM directly
  on allocation failure.

Fixes: 5fdded844892 ("PM/devfreq: governor: Add a private governor_data for governor")
Signed-off-by: Malaya Kumar Rout <malayarout91@gmail.com>
---
 drivers/devfreq/governor_userspace.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/devfreq/governor_userspace.c b/drivers/devfreq/governor_userspace.c
index 3906ebedbae8..8211aadb81f0 100644
--- a/drivers/devfreq/governor_userspace.c
+++ b/drivers/devfreq/governor_userspace.c
@@ -89,15 +89,18 @@ static int userspace_init(struct devfreq *devfreq)
 	int err = 0;
 	struct userspace_data *data = kzalloc_obj(struct userspace_data);
 
-	if (!data) {
-		err = -ENOMEM;
-		goto out;
-	}
+	if (!data)
+		return -ENOMEM;
+
 	data->valid = false;
 	devfreq->governor_data = data;
 
 	err = sysfs_create_group(&devfreq->dev.kobj, &dev_attr_group);
-out:
+	if (err) {
+		kfree(data);
+		devfreq->governor_data = NULL;
+	}
+
 	return err;
 }
 
-- 
2.54.0