Spelling mistake (triple letters) in comment.
Detected with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>

---
 tools/testing/selftests/sync/sync_stress_parallelism.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/sync/sync_stress_parallelism.c b/tools/testing/selftests/sync/sync_stress_parallelism.c
index e6c9be671dfc..6ce56ca204c4 100644
--- a/tools/testing/selftests/sync/sync_stress_parallelism.c
+++ b/tools/testing/selftests/sync/sync_stress_parallelism.c
@@ -87,7 +87,7 @@ int test_stress_two_threads_shared_timeline(void)
 
 	/*
 	 * Use a single timeline to synchronize two threads
-	 * hammmering on the same counter.
+	 * hammering on the same counter.
 	 */
 
 	pthread_create(&a, NULL, (void *(*)(void *))