[LTP] [PATCH 1/2] ltp-aiodio/dio_sparse: Fix write in dio_sparse()

[Guangwen Feng]

Current code looks buggy because when the offset is greater than
or equal to the filesize, it will never happen to do the write
in the loop, as a result, ADSP080..ADSP087 do not work actually.
Fix it by making sure that we do write writesize bytes.

Signed-off-by: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
---
 testcases/kernel/io/ltp-aiodio/dio_sparse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/testcases/kernel/io/ltp-aiodio/dio_sparse.c b/testcases/kernel/io/ltp-aiodio/dio_sparse.c
index 41b9929..3828ed7 100644
--- a/testcases/kernel/io/ltp-aiodio/dio_sparse.c
+++ b/testcases/kernel/io/ltp-aiodio/dio_sparse.c
@@ -78,7 +78,7 @@ int dio_sparse(char *filename, int align, int writesize, int filesize, int offse
 
 	memset(bufptr, 0, writesize);
 	lseek(fd, offset, SEEK_SET);
-	for (i = offset; i < filesize;) {
+	for (i = 0; i < filesize;) {
 		if ((w = write(fd, bufptr, writesize)) != writesize) {
 			tst_resm(TBROK | TERRNO, "write() returned %d", w);
 			close(fd);
-- 
1.8.4.2