author: Miaohe Lin <linmiaohe@huawei.com> 2021-10-18 15:15:52 -0700
committer: Linus Torvalds <torvalds@linux-foundation.org> 2021-10-18 20:22:03 -1000
commit: 2127d22509aec3a83dffb2a3c736df7ba747a7ce
parent: 6d2aec9e123bb9c49cb5c7fc654f25f81e688e8c
Commit Summary:
Diffstat:
1 file changed, 7 insertions, 1 deletion
diff --git a/mm/slub.c b/mm/slub.c
index 3d2025f7163b..ed160b6c54f8 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -6108,9 +6108,14 @@ static int slab_debug_trace_open(struct inode *inode, struct file *filep)
struct kmem_cache *s = file_inode(filep)->i_private;
unsigned long *obj_map;
+ if (!t)
+ return -ENOMEM;
+
obj_map = bitmap_alloc(oo_objects(s->oo), GFP_KERNEL);
- if (!obj_map)
+ if (!obj_map) {
+ seq_release_private(inode, filep);
return -ENOMEM;
+ }
if (strcmp(filep->f_path.dentry->d_name.name, "alloc_traces") == 0)
alloc = TRACK_ALLOC;
@@ -6119,6 +6124,7 @@ static int slab_debug_trace_open(struct inode *inode, struct file *filep)
if (!alloc_loc_track(t, PAGE_SIZE / sizeof(struct location), GFP_KERNEL)) {
bitmap_free(obj_map);
+ seq_release_private(inode, filep);
return -ENOMEM;
}