When kmem_cache_create fails, the lack of error-handling code may
cause unexpected results.
This patch adds error-handling code after calling kmem_cache_create.
Signed-off-by: Zhouyang Jia <jiazhouyang09@xxxxxxxxx>
---
fs/notify/dnotify/dnotify.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/notify/dnotify/dnotify.c b/fs/notify/dnotify/dnotify.c
index 63a1ca4..216b411 100644
--- a/fs/notify/dnotify/dnotify.c
+++ b/fs/notify/dnotify/dnotify.c
@@ -387,6 +387,9 @@ static int __init dnotify_init(void)
dnotify_struct_cache = KMEM_CACHE(dnotify_struct, SLAB_PANIC);
dnotify_mark_cache = KMEM_CACHE(dnotify_mark, SLAB_PANIC);
+ if (!dnotify_struct_cache || !dnotify_mark_cache)
+ return -ENOMEM;
+
dnotify_group = fsnotify_alloc_group(&dnotify_fsnotify_ops);
if (IS_ERR(dnotify_group))
panic("unable to allocate fsnotify group for dnotify\n");
--
2.7.4
