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authorSeongJae Park <sj@kernel.org>2025-09-08 19:22:38 -0700
committerAndrew Morton <akpm@linux-foundation.org>2025-09-13 13:05:38 -0700
commitc62cff40481c037307a13becbda795f7afdcfebd (patch)
treeaf65a554eaaa5651a4ec2fbdb8214a0c0bae2eab
parente6b733ca2f99e968d696c2e812c8eb8e090bf37b (diff)
samples/damon/mtier: avoid starting DAMON before initialization
Commit 964314344eab ("samples/damon/mtier: support boot time enable setup") is somehow incompletely applying the origin patch [1]. It is missing the part that avoids starting DAMON before module initialization. Probably a mistake during a merge has happened. Fix it by applying the missed part again. Link: https://lkml.kernel.org/r/20250909022238.2989-4-sj@kernel.org Link: https://lore.kernel.org/20250706193207.39810-4-sj@kernel.org [1] Fixes: 964314344eab ("samples/damon/mtier: support boot time enable setup") Signed-off-by: SeongJae Park <sj@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--samples/damon/mtier.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/samples/damon/mtier.c b/samples/damon/mtier.c
index 7ebd352138e4..beaf36657dea 100644
--- a/samples/damon/mtier.c
+++ b/samples/damon/mtier.c
@@ -208,6 +208,9 @@ static int damon_sample_mtier_enable_store(
if (enabled == is_enabled)
return 0;
+ if (!init_called)
+ return 0;
+
if (enabled) {
err = damon_sample_mtier_start();
if (err)