From f73ba2e80142a1575d0ec6985ccaffa1425f9896 Mon Sep 17 00:00:00 2001
From: David Yang <davidcomponentone@gmail.com>
Date: Thu, 28 Oct 2021 14:36:36 -0700
Subject: [PATCH] tools/testing/selftests/vm/split_huge_page_test.c: fix application of sizeof to pointer
Git-commit: 9c7516d669e68e94e17203469a873ff5d1d3a41a
Patch-mainline: v5.15
References: stable-5.14.19

[ Upstream commit 9c7516d669e68e94e17203469a873ff5d1d3a41a ]

The coccinelle check report:

  ./tools/testing/selftests/vm/split_huge_page_test.c:344:36-42:
  ERROR: application of sizeof to pointer

Use "strlen" to fix it.

Link: https://lkml.kernel.org/r/20211012030116.184027-1-davidcomponentone@gmail.com
Signed-off-by: David Yang <davidcomponentone@gmail.com>
Reported-by: Zeal Robot <zealci@zte.com.cn>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

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

diff --git a/tools/testing/selftests/vm/split_huge_page_test.c b/tools/testing/selftests/vm/split_huge_page_test.c
index 1af16d2c2a0a..52497b7b9f1d 100644
--- a/tools/testing/selftests/vm/split_huge_page_test.c
+++ b/tools/testing/selftests/vm/split_huge_page_test.c
@@ -341,7 +341,7 @@ void split_file_backed_thp(void)
 	}
 
 	/* write something to the file, so a file-backed THP can be allocated */
-	num_written = write(fd, tmpfs_loc, sizeof(tmpfs_loc));
+	num_written = write(fd, tmpfs_loc, strlen(tmpfs_loc) + 1);
 	close(fd);
 
 	if (num_written < 1) {
-- 
2.26.2