From: John L. Hammond <jhammond@whamcloud.com>
Date: Wed, 6 Apr 2022 16:51:47 +0000 (-0500)
Subject: LU-15308 lod: set ldo_mirrors to NULL on error
X-Git-Tag: 2.15.51~140
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=refs%2Fchanges%2F08%2F47008%2F2;p=fs%2Flustre-release.git

LU-15308 lod: set ldo_mirrors to NULL on error

In lod_alloc_comp_entries() if OBD_ALLOC_LARGE fails and we free
ldo_mirrors then we set it to NULL to avoid a double free later.

Test-Parameters: trivial
Signed-off-by: John L. Hammond <jhammond@whamcloud.com>
Change-Id: I27552d1eaecc06720190db9cfe89ded71b9fef53
Reviewed-on: https://review.whamcloud.com/47008
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Alex Zhuravlev <bzzz@whamcloud.com>
---

diff --git a/lustre/lod/lod_lov.c b/lustre/lod/lod_lov.c
index d2636c0..8d87e4d 100644
--- a/lustre/lod/lod_lov.c
+++ b/lustre/lod/lod_lov.c
@@ -580,6 +580,7 @@ int lod_alloc_comp_entries(struct lod_object *lo,
 			sizeof(*lo->ldo_comp_entries) * comp_count);
 	if (lo->ldo_comp_entries == NULL) {
 		OBD_FREE_PTR_ARRAY(lo->ldo_mirrors, mirror_count);
+		lo->ldo_mirrors = NULL;
 		lo->ldo_mirror_count = 0;
 		return -ENOMEM;
 	}