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/module/sysfs.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/module/sysfs.c')
| -rw-r--r-- | kernel/module/sysfs.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/kernel/module/sysfs.c b/kernel/module/sysfs.c index c7622ff5226a..734ea3180478 100644 --- a/kernel/module/sysfs.c +++ b/kernel/module/sysfs.c @@ -74,11 +74,11 @@ static int add_sect_attrs(struct module *mod, const struct load_info *info) for (i = 0; i < info->hdr->e_shnum; i++) if (!sect_empty(&info->sechdrs[i])) nloaded++; - sect_attrs = kzalloc(struct_size(sect_attrs, attrs, nloaded), GFP_KERNEL); + sect_attrs = kzalloc_flex(*sect_attrs, attrs, nloaded, GFP_KERNEL); if (!sect_attrs) return -ENOMEM; - gattr = kcalloc(nloaded + 1, sizeof(*gattr), GFP_KERNEL); + gattr = kzalloc_objs(*gattr, nloaded + 1, GFP_KERNEL); if (!gattr) { kfree(sect_attrs); return -ENOMEM; @@ -166,12 +166,11 @@ static int add_notes_attrs(struct module *mod, const struct load_info *info) if (notes == 0) return 0; - notes_attrs = kzalloc(struct_size(notes_attrs, attrs, notes), - GFP_KERNEL); + notes_attrs = kzalloc_flex(*notes_attrs, attrs, notes, GFP_KERNEL); if (!notes_attrs) return -ENOMEM; - gattr = kcalloc(notes + 1, sizeof(*gattr), GFP_KERNEL); + gattr = kzalloc_objs(*gattr, notes + 1, GFP_KERNEL); if (!gattr) { kfree(notes_attrs); return -ENOMEM; |