diff options
| author | Kees Cook <kees@kernel.org> | 2026-02-20 23:49:23 -0800 |
|---|---|---|
| committer | Kees Cook <kees@kernel.org> | 2026-02-21 01:02:28 -0800 |
| commit | 69050f8d6d075dc01af7a5f2f550a8067510366f (patch) | |
| tree | bb265f94d9dfa7876c06a5d9f88673d496a15341 /kernel/watch_queue.c | |
| parent | d39a1d7486d98668dd34aaa6732aad7977c45f5a (diff) | |
treewide: Replace kmalloc with kmalloc_obj for non-scalar types
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:
Single allocations: kmalloc(sizeof(TYPE), ...)
are replaced with: kmalloc_obj(TYPE, ...)
Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with: kmalloc_objs(TYPE, COUNT, ...)
Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...)
(where TYPE may also be *VAR)
The resulting allocations no longer return "void *", instead returning
"TYPE *".
Signed-off-by: Kees Cook <kees@kernel.org>
Diffstat (limited to 'kernel/watch_queue.c')
| -rw-r--r-- | kernel/watch_queue.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/watch_queue.c b/kernel/watch_queue.c index 52f89f1137da..d966b8c99052 100644 --- a/kernel/watch_queue.c +++ b/kernel/watch_queue.c @@ -278,7 +278,7 @@ long watch_queue_set_size(struct pipe_inode_info *pipe, unsigned int nr_notes) pipe->nr_accounted = nr_pages; ret = -ENOMEM; - pages = kcalloc(nr_pages, sizeof(struct page *), GFP_KERNEL); + pages = kzalloc_objs(struct page *, nr_pages, GFP_KERNEL); if (!pages) goto error; @@ -358,7 +358,7 @@ long watch_queue_set_filter(struct pipe_inode_info *pipe, * user-specified filters. */ ret = -ENOMEM; - wfilter = kzalloc(struct_size(wfilter, filters, nr_filter), GFP_KERNEL); + wfilter = kzalloc_flex(*wfilter, filters, nr_filter, GFP_KERNEL); if (!wfilter) goto err_filter; wfilter->nr_filters = nr_filter; @@ -692,7 +692,7 @@ int watch_queue_init(struct pipe_inode_info *pipe) { struct watch_queue *wqueue; - wqueue = kzalloc(sizeof(*wqueue), GFP_KERNEL); + wqueue = kzalloc_obj(*wqueue, GFP_KERNEL); if (!wqueue) return -ENOMEM; |