[PATCH v2] perf/profile: Remove unused local variable err

[Yongxin Yang]

In create_proc_profile() the local variable err is only ever assigned 0 and
then returned, so it can never hold anything but 0.  Drop it and return 0
directly.

No functional change.

Reviewed-by: Bradley Morgan <include@xxxxxxxxx>
Signed-off-by: Yongxin Yang <yangyongxin@xxxxxxxxxx>
---
Link: https://lore.kernel.org/all/20260824024251.279751-1-yang_yongxin123@xxxxxxx/

Changes in v2:
- Rebased onto current mainline; the file has moved 24 lines since v1.
- Reword the changelog: err is read by the return statement, so there is no
  compiler warning to fix; the variable is simply always zero.
- Add Reviewed-by from Bradley Morgan, given on v1.

 kernel/profile.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/profile.c b/kernel/profile.c
index 13be6fc9fd00..2d3bef69d3be 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -240,7 +240,6 @@ static const struct proc_ops profile_proc_ops = {
 int __ref create_proc_profile(void)
 {
 	struct proc_dir_entry *entry;
-	int err = 0;
 
 	if (!prof_on)
 		return 0;
@@ -248,7 +247,7 @@ int __ref create_proc_profile(void)
 			    NULL, &profile_proc_ops);
 	if (entry)
 		proc_set_size(entry, (1 + prof_len) * sizeof(atomic_t));
-	return err;
+	return 0;
 }
 subsys_initcall(create_proc_profile);
 #endif /* CONFIG_PROC_FS */
-- 
2.25.1