[PATCH] tool: selftests: fix spelling typo of 'writting'

[Wang Qing]

writting -> writing

Signed-off-by: Wang Qing <wangq...@vivo.com>
---
 tools/testing/selftests/vm/userfaultfd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/vm/userfaultfd.c 
b/tools/testing/selftests/vm/userfaultfd.c
index 9b0912a..9132fae7
--- a/tools/testing/selftests/vm/userfaultfd.c
+++ b/tools/testing/selftests/vm/userfaultfd.c
@@ -894,7 +894,7 @@ static int faulting_process(int signal_test)
                                count_verify[nr]);
                }
                /*
-                * Trigger write protection if there is by writting
+                * Trigger write protection if there is by writing
                 * the same value back.
                 */
                *area_count(area_dst, nr) = count;
@@ -922,7 +922,7 @@ static int faulting_process(int signal_test)
                                count_verify[nr]); exit(1);
                }
                /*
-                * Trigger write protection if there is by writting
+                * Trigger write protection if there is by writing
                 * the same value back.
                 */
                *area_count(area_dst, nr) = count;
-- 
2.7.4