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Date: Fri, 2 Sep 2022 14:56:31 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: SeongJae Park <sj@...nel.org> Cc: linux-kernel@...r.kernel.org, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Andrew Morton <akpm@...ux-foundation.org>, damon@...ts.linux.dev, linux-mm@...ck.org, stable <stable@...nel.org> Subject: [PATCH] mm/damon/dbgfs: fix memory leak when using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. Fix this up by properly calling dput(). Cc: SeongJae Park <sj@...nel.org> Cc: Andrew Morton <akpm@...ux-foundation.org> Cc: damon@...ts.linux.dev Cc: linux-mm@...ck.org Cc: stable <stable@...nel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- mm/damon/dbgfs.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c index cb8a7e9926a4..dfb6ef8c83e0 100644 --- a/mm/damon/dbgfs.c +++ b/mm/damon/dbgfs.c @@ -915,6 +915,7 @@ static int dbgfs_rm_context(char *name) new_ctxs[j++] = dbgfs_ctxs[i]; } + dput(dir); kfree(dbgfs_dirs); kfree(dbgfs_ctxs); -- 2.37.3
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