When kmem_cache_zalloc fails, the lack of error-handling code may
cause unexpected results.
This patch adds error-handling code after calling kmem_cache_zalloc.
Signed-off-by: Zhouyang Jia <jiazhouyan...@gmail.com>
---
fs/gfs2/trans.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c
index 064c9a0..da81eb4 100644
--- a/fs/gfs2/trans.c
+++ b/fs/gfs2/trans.c
@@ -130,6 +130,9 @@ static struct gfs2_bufdata *gfs2_alloc_bufdata(struct
gfs2_glock *gl,
struct gfs2_bufdata *bd;
bd = kmem_cache_zalloc(gfs2_bufdata_cachep, GFP_NOFS | __GFP_NOFAIL);
+ if (!bd)
+ return NULL;
+
bd->bd_bh = bh;
bd->bd_gl = gl;
bd->bd_ops = lops;
--
2.7.4
