mdadm/0086-restripe-fix-ignoring-return-value-of-read-and-lseek.patch
Neil Brown 505f19f50d Accepting request 841255 from home:colyli:branches:Base:System
- Update to latest mdadm which is requested by jsc#SLE-13700 from
  partners. Mostly the purpose is for latest Intel IMSM raid
  support, while some other fixes are important too.
- imsm: Correct minimal device size (jsc#SLE-13700)
  0073-imsm-Correct-minimal-device-size.patch
- Detail: show correct bitmap info for cluster raid device
  (jsc#SLE-13700)
  0074-Detail-show-correct-bitmap-info-for-cluster-raid-dev.patch
- imsm: support the Array Creation Time field in metadata
  (jsc#SLE-13700)
  0075-imsm-support-the-Array-Creation-Time-field-in-metada.patch
- imsm: show Subarray and Volume ID in --examine output
  (jsc#SLE-13700)
  0076-imsm-show-Subarray-and-Volume-ID-in-examine-output.patch
- udev: Ignore change event for imsm (jsc#SLE-13700)
  0077-udev-Ignore-change-event-for-imsm.patch
- Manage, imsm: Write metadata before add (jsc#SLE-13700)
  0078-Manage-imsm-Write-metadata-before-add.patch
- Assemble: print error message if mdadm fails assembling
  with --uuid option (jsc#SLE-13700)
  0079-Assemble-print-error-message-if-mdadm-fails-assembli.patch
- clean up meaning of small typo (jsc#SLE-13700)
  0080-clean-up-meaning-of-small-typo.patch
- Assemble.c: respect force flag (jsc#SLE-13700)
  0081-Assemble.c-respect-force-flag.patch
- mdcheck: Log when done (jsc#SLE-13700)
  0082-mdcheck-Log-when-done.patch
- Makefile: add EXTRAVERSION support (jsc#SLE-13700)
  0083-Makefile-add-EXTRAVERSION-support.patch
- uuid.c: split uuid stuffs from util.c (jsc#SLE-13700)

OBS-URL: https://build.opensuse.org/request/show/841255
OBS-URL: https://build.opensuse.org/package/show/Base:System/mdadm?expand=0&rev=189
2020-10-15 23:45:51 +00:00

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 81/89] restripe: fix ignoring return value of read and lseek
Commit: d92cee7b374db9944b63bdd6c1784a2dd90ee9ca
Patch-mainline: mdadm-4.1+
References: jsc#SLE-13700
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>
Signed-off-by: Coly Li <colyli@suse.de>
---
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,
--
2.26.2