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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-05-26 06:24:28 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-05-26 06:24:28 +0300 |
| commit | bc2dbc5420e82560e650f8531ceca597441ca171 (patch) | |
| tree | ac93448eaba1fe89fa007f9945f7e507b97dba8e /lib | |
| parent | 03250e1028057173b212341015d5fbf53327042c (diff) | |
| parent | 3f1959721558a976aaf9c2024d5bc884e6411bf7 (diff) | |
| download | linux-bc2dbc5420e82560e650f8531ceca597441ca171.tar.xz | |
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"16 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
kasan: fix memory hotplug during boot
kasan: free allocated shadow memory on MEM_CANCEL_ONLINE
checkpatch: fix macro argument precedence test
init/main.c: include <linux/mem_encrypt.h>
kernel/sys.c: fix potential Spectre v1 issue
mm/memory_hotplug: fix leftover use of struct page during hotplug
proc: fix smaps and meminfo alignment
mm: do not warn on offline nodes unless the specific node is explicitly requested
mm, memory_hotplug: make has_unmovable_pages more robust
mm/kasan: don't vfree() nonexistent vm_area
MAINTAINERS: change hugetlbfs maintainer and update files
ipc/shm: fix shmat() nil address after round-down when remapping
Revert "ipc/shm: Fix shmat mmap nil-page protection"
idr: fix invalid ptr dereference on item delete
ocfs2: revert "ocfs2/o2hb: check len for bio_add_page() to avoid getting incorrect bio"
mm: fix nr_rotate_swap leak in swapon() error case
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/radix-tree.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/radix-tree.c b/lib/radix-tree.c index 43e0cbedc3a0..a9e41aed6de4 100644 --- a/lib/radix-tree.c +++ b/lib/radix-tree.c @@ -2034,10 +2034,12 @@ void *radix_tree_delete_item(struct radix_tree_root *root, unsigned long index, void *item) { struct radix_tree_node *node = NULL; - void __rcu **slot; + void __rcu **slot = NULL; void *entry; entry = __radix_tree_lookup(root, index, &node, &slot); + if (!slot) + return NULL; if (!entry && (!is_idr(root) || node_tag_get(root, node, IDR_FREE, get_slot_offset(node, slot)))) return NULL; |