[Cluster-devel] [PATCH 3/3] fsck.gfs2: Fix unchecked malloc in gfs2_dup_set()

[Andrew Price]

Spotted by coverity: Dereferencing a pointer that might be null "data"
when calling "memset"

Signed-off-by: Andrew Price <anprice at redhat.com>
---
 gfs2/fsck/util.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/gfs2/fsck/util.c b/gfs2/fsck/util.c
index f37fe7d..6c80ae8 100644
--- a/gfs2/fsck/util.c
+++ b/gfs2/fsck/util.c
@@ -253,6 +253,10 @@ static struct duptree *gfs2_dup_set(uint64_t dblock, int create)
 	if (!create)
 		return NULL;
 	data = malloc(sizeof(struct duptree));
+	if (data == NULL) {
+		log_crit( _("Unable to allocate duptree structure\n"));
+		return NULL;
+	}
 	dups_found++;
 	memset(data, 0, sizeof(struct duptree));
 	/* Add new node and rebalance tree. */
-- 
1.7.7.5