The quilt patch titled Subject: mm/damon/sysfs: do not ignore callback's return value in damon_sysfs_damon_call() has been removed from the -mm tree. Its filename was mm-damon-sysfs-do-not-ignore-callbacks-return-value-in-damon_sysfs_damon_call.patch

This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------ From: Akinobu Mita akinobu.mita@gmail.com Subject: mm/damon/sysfs: do not ignore callback's return value in damon_sysfs_damon_call() Date: Sat, 20 Sep 2025 22:25:46 +0900

The callback return value is ignored in damon_sysfs_damon_call(), which means that it is not possible to detect invalid user input when writing commands such as 'commit' to /sys/kernel/mm/damon/admin/kdamonds/<K>/state. Fix it.

Link: https://lkml.kernel.org/r/20250920132546.5822-1-akinobu.mita@gmail.com Fixes: f64539dcdb87 ("mm/damon/sysfs: use damon_call() for update_schemes_stats") Signed-off-by: Akinobu Mita akinobu.mita@gmail.com Reviewed-by: SeongJae Park sj@kernel.org Cc: stable@vger.kernel.org [6.14+] Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

mm/damon/sysfs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/mm/damon/sysfs.c~mm-damon-sysfs-do-not-ignore-callbacks-return-value-in-damon_sysfs_damon_call +++ a/mm/damon/sysfs.c @@ -1592,12 +1592,14 @@ static int damon_sysfs_damon_call(int (* struct damon_sysfs_kdamond *kdamond) { struct damon_call_control call_control = {}; + int err;

if (!kdamond->damon_ctx) return -EINVAL; call_control.fn = fn; call_control.data = kdamond; - return damon_call(kdamond->damon_ctx, &call_control); + err = damon_call(kdamond->damon_ctx, &call_control); + return err ? err : call_control.return_code; }

struct damon_sysfs_schemes_walk_data { _

Patches currently in -mm which might be from akinobu.mita@gmail.com are