[tip: perf/core] selftests/bpf: fix uprobe.path leak in bpf_testmod

[tip-bot2 for Jiri Olsa]

The following commit has been merged into the perf/core branch of tip:

Commit-ID:     db61e6a4eee5a7884b2cafeaf407895f253bbaa7
Gitweb:        https://git.kernel.org/tip/db61e6a4eee5a7884b2cafeaf407895f253bbaa7
Author:        Jiri Olsa <olsajiri@xxxxxxxxx>
AuthorDate:    Thu, 01 Aug 2024 15:27:24 +02:00
Committer:     Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Fri, 02 Aug 2024 11:30:31 +02:00

selftests/bpf: fix uprobe.path leak in bpf_testmod

testmod_unregister_uprobe() forgets to path_put(&uprobe.path).

Signed-off-by: Jiri Olsa <olsajiri@xxxxxxxxx>
Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240801132724.GA8791@xxxxxxxxxx
---
 tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c
index fd28c11..72f565a 100644
--- a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c
+++ b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c
@@ -477,6 +477,7 @@ static void testmod_unregister_uprobe(void)
 	if (uprobe.offset) {
 		uprobe_unregister(d_real_inode(uprobe.path.dentry),
 				  uprobe.offset, &uprobe.consumer);
+		path_put(&uprobe.path);
 		uprobe.offset = 0;
 	}