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-rw-r--r--mm/damon/dbgfs.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index cb8a7e9926a4..cfdf63132d5a 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -818,6 +818,9 @@ static int dbgfs_mk_context(char *name)
return -ENOENT;
new_dir = debugfs_create_dir(name, root);
+ /* Below check is required for a potential duplicated name case */
+ if (IS_ERR(new_dir))
+ return PTR_ERR(new_dir);
dbgfs_dirs[dbgfs_nr_ctxs] = new_dir;
new_ctx = dbgfs_new_ctx();