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>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/core/gro_cells.c b/net/core/gro_cells.c
index a725d21159a6..1b84385c04bd 100644
--- a/net/core/gro_cells.c
+++ b/net/core/gro_cells.c
@@ -132,7 +132,7 @@ void gro_cells_destroy(struct gro_cells *gcells)
 	 * because we might be called from cleanup_net(), and we
 	 * definitely do not want to block this critical task.
 	 */
-	defer = kmalloc(sizeof(*defer), GFP_KERNEL | __GFP_NOWARN);
+	defer = kmalloc_obj(*defer, GFP_KERNEL | __GFP_NOWARN);
 	if (likely(defer)) {
 		defer->ptr = gcells->cells;
 		call_rcu(&defer->rcu, percpu_free_defer_callback);