54 lines
1.7 KiB
Diff
54 lines
1.7 KiB
Diff
From d92cee7b374db9944b63bdd6c1784a2dd90ee9ca Mon Sep 17 00:00:00 2001
|
||
From: Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
|
||
Date: Mon, 18 May 2020 23:53:36 +0200
|
||
Subject: [PATCH 081/108] =?UTF-8?q?restripe:=20fix=20ignoring=20return=20v?=
|
||
=?UTF-8?q?alue=20of=20=E2=80=98read=E2=80=99=20and=20lseek?=
|
||
MIME-Version: 1.0
|
||
Content-Type: text/plain; charset=UTF-8
|
||
Content-Transfer-Encoding: 8bit
|
||
|
||
Got below error when run "make everything".
|
||
|
||
restripe.c: In function ‘test_stripes’:
|
||
restripe.c:870:4: error: ignoring return value of ‘read’, declared with attribute warn_unused_result [-Werror=unused-result]
|
||
read(source[i], stripes[i], chunk_size);
|
||
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
||
Fix it by check the return value of ‘read’, and free memory
|
||
in the failure case.
|
||
|
||
And check the return value of lseek as well per Jes's comment.
|
||
|
||
Signed-off-by: Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
|
||
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
|
||
---
|
||
restripe.c | 12 ++++++++++--
|
||
1 file changed, 10 insertions(+), 2 deletions(-)
|
||
|
||
diff --git a/restripe.c b/restripe.c
|
||
index 31b07e8..86e1d00 100644
|
||
--- a/restripe.c
|
||
+++ b/restripe.c
|
||
@@ -866,8 +866,16 @@ int test_stripes(int *source, unsigned long long *offsets,
|
||
int disk;
|
||
|
||
for (i = 0 ; i < raid_disks ; i++) {
|
||
- lseek64(source[i], offsets[i]+start, 0);
|
||
- read(source[i], stripes[i], chunk_size);
|
||
+ if ((lseek64(source[i], offsets[i]+start, 0) < 0) ||
|
||
+ (read(source[i], stripes[i], chunk_size) !=
|
||
+ chunk_size)) {
|
||
+ free(q);
|
||
+ free(p);
|
||
+ free(blocks);
|
||
+ free(stripes);
|
||
+ free(stripe_buf);
|
||
+ return -1;
|
||
+ }
|
||
}
|
||
for (i = 0 ; i < data_disks ; i++) {
|
||
int disk = geo_map(i, start/chunk_size, raid_disks,
|
||
--
|
||
2.7.5
|
||
|