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>

arch/mips/txx9/generic/pci.c

@@ -120,7 +120,7 @@ txx9_alloc_pci_controller(struct pci_controller *pcic,
 	int min_size = 0x10000;
 
 	if (!pcic) {
-		new = kzalloc(sizeof(*new), GFP_KERNEL);
+		new = kzalloc_obj(*new, GFP_KERNEL);
 		if (!new)
 			return NULL;
 		new->r_mem[0].name = "PCI mem";