features/changelog: Avoid a potential null dereference

Addresses CID 1396292

Change-Id: I9141502a12fb3e18c04d07c79da87a5ebb2cfc23
updates: bz#789278
Signed-off-by: Vijay Bellur <vbellur@redhat.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/xlators/features/changelog/lib/src/gf-changelog.c b/xlators/features/changelog/lib/src/gf-changelog.c
index 8cfab4fe391..42e20915922 100644
--- a/xlators/features/changelog/lib/src/gf-changelog.c
+++ b/xlators/features/changelog/lib/src/gf-changelog.c
@@ -160,9 +160,13 @@ gf_changelog_ctx_defaults_init(glusterfs_ctx_t *ctx)
     return 0;
 
 free_pool:
-    GF_FREE(pool->frame_mem_pool);
+    if (pool) {
+        GF_FREE(pool->frame_mem_pool);
 
-    GF_FREE(pool->stack_mem_pool);
+        GF_FREE(pool->stack_mem_pool);
+
+        GF_FREE(pool);
+    }
 
     GF_FREE(ctx->stub_mem_pool);
 
@@ -174,8 +178,6 @@ free_pool:
 
     GF_FREE(ctx->logbuf_pool);
 
-    GF_FREE(pool);
-
     GF_FREE(ctx->iobuf_pool);
 
     GF_FREE(ctx->event_pool);