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>

Author: kees

arch/alpha/kernel/core_marvel.c

@@ -861,7 +861,7 @@ marvel_agp_setup(alpha_agp_info *agp)
 	if (!alpha_agpgart_size)
 		return -ENOMEM;
 
-	aper = kmalloc(sizeof(*aper), GFP_KERNEL);
+	aper = kmalloc_obj(*aper, GFP_KERNEL);
 	if (aper == NULL) return -ENOMEM;
 
 	aper->arena = agp->hose->sg_pci;
@@ -1059,7 +1059,7 @@ marvel_agp_info(void)
 	/*
 	 * Allocate the info structure.
 	 */
-	agp = kmalloc(sizeof(*agp), GFP_KERNEL);
+	agp = kmalloc_obj(*agp, GFP_KERNEL);
 	if (!agp)
 		return NULL;
 

arch/alpha/kernel/core_titan.c

@@ -594,7 +594,7 @@ titan_agp_setup(alpha_agp_info *agp)
 	if (!alpha_agpgart_size)
 		return -ENOMEM;
 
-	aper = kmalloc(sizeof(struct titan_agp_aperture), GFP_KERNEL);
+	aper = kmalloc_obj(struct titan_agp_aperture, GFP_KERNEL);
 	if (aper == NULL)
 		return -ENOMEM;
 
@@ -760,7 +760,7 @@ titan_agp_info(void)
 	/*
 	 * Allocate the info structure.
 	 */
-	agp = kmalloc(sizeof(*agp), GFP_KERNEL);
+	agp = kmalloc_obj(*agp, GFP_KERNEL);
 	if (!agp)
 		return NULL;
 

arch/alpha/kernel/module.c

@@ -46,7 +46,7 @@ process_reloc_for_got(Elf64_Rela *rela,
 			goto found_entry;
 		}
 
-	g = kmalloc (sizeof (*g), GFP_KERNEL);
+	g = kmalloc_obj(*g, GFP_KERNEL);
 	g->next = chains[r_sym].next;
 	g->r_addend = r_addend;
 	g->got_offset = *poffset;
@@ -93,7 +93,7 @@ module_frob_arch_sections(Elf64_Ehdr *hdr, Elf64_Shdr *sechdrs,
 	}
 
 	nsyms = symtab->sh_size / sizeof(Elf64_Sym);
-	chains = kcalloc(nsyms, sizeof(struct got_entry), GFP_KERNEL);
+	chains = kzalloc_objs(struct got_entry, nsyms, GFP_KERNEL);
 	if (!chains) {
 		printk(KERN_ERR
 		       "module %s: no memory for symbol chain buffer\n",

arch/alpha/kernel/pci.c

@@ -220,7 +220,7 @@ static void pdev_save_srm_config(struct pci_dev *dev)
 		printed = 1;
 	}
 
-	tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
+	tmp = kmalloc_obj(*tmp, GFP_KERNEL);
 	if (!tmp) {
 		printk(KERN_ERR "%s: kmalloc() failed!\n", __func__);
 		return;

arch/alpha/kernel/setup.c

@@ -392,7 +392,7 @@ register_cpus(void)
 	int i;
 
 	for_each_possible_cpu(i) {
-		struct cpu *p = kzalloc(sizeof(*p), GFP_KERNEL);
+		struct cpu *p = kzalloc_obj(*p, GFP_KERNEL);
 		if (!p)
 			return -ENOMEM;
 		register_cpu(p, i);

arch/arc/kernel/unwind.c

@@ -366,7 +366,7 @@ void *unwind_add_table(struct module *module, const void *table_start,
 	if (table_size <= 0)
 		return NULL;
 
-	table = kmalloc(sizeof(*table), GFP_KERNEL);
+	table = kmalloc_obj(*table, GFP_KERNEL);
 	if (!table)
 		return NULL;
 

arch/arc/net/bpf_jit_core.c

@@ -1140,7 +1140,7 @@ static int jit_prepare_final_mem_alloc(struct jit_context *ctx)
 	}
 
 	if (ctx->need_extra_pass) {
-		ctx->jit_data = kzalloc(sizeof(*ctx->jit_data), GFP_KERNEL);
+		ctx->jit_data = kzalloc_obj(*ctx->jit_data, GFP_KERNEL);
 		if (!ctx->jit_data)
 			return -ENOMEM;
 	}

arch/arm/common/locomo.c

@@ -222,7 +222,7 @@ locomo_init_one_child(struct locomo *lchip, struct locomo_dev_info *info)
 	struct locomo_dev *dev;
 	int ret;
 
-	dev = kzalloc(sizeof(struct locomo_dev), GFP_KERNEL);
+	dev = kzalloc_obj(struct locomo_dev, GFP_KERNEL);
 	if (!dev) {
 		ret = -ENOMEM;
 		goto out;
@@ -277,7 +277,7 @@ static int locomo_suspend(struct platform_device *dev, pm_message_t state)
 	struct locomo_save_data *save;
 	unsigned long flags;
 
-	save = kmalloc(sizeof(struct locomo_save_data), GFP_KERNEL);
+	save = kmalloc_obj(struct locomo_save_data, GFP_KERNEL);
 	if (!save)
 		return -ENOMEM;
 
@@ -360,7 +360,7 @@ __locomo_probe(struct device *me, struct resource *mem, int irq)
 	unsigned long r;
 	int i, ret = -ENODEV;
 
-	lchip = kzalloc(sizeof(struct locomo), GFP_KERNEL);
+	lchip = kzalloc_obj(struct locomo, GFP_KERNEL);
 	if (!lchip)
 		return -ENOMEM;
 

arch/arm/common/sa1111.c

@@ -737,7 +737,7 @@ sa1111_init_one_child(struct sa1111 *sachip, struct resource *parent,
 	unsigned i;
 	int ret;
 
-	dev = kzalloc(sizeof(struct sa1111_dev), GFP_KERNEL);
+	dev = kzalloc_obj(struct sa1111_dev, GFP_KERNEL);
 	if (!dev) {
 		ret = -ENOMEM;
 		goto err_alloc;
@@ -969,7 +969,7 @@ static int sa1111_suspend_noirq(struct device *dev)
 	unsigned int val;
 	void __iomem *base;
 
-	save = kmalloc(sizeof(struct sa1111_save_data), GFP_KERNEL);
+	save = kmalloc_obj(struct sa1111_save_data, GFP_KERNEL);
 	if (!save)
 		return -ENOMEM;
 	sachip->saved_state = save;

arch/arm/common/scoop.c

@@ -185,7 +185,7 @@ static int scoop_probe(struct platform_device *pdev)
 	if (!mem)
 		return -EINVAL;
 
-	devptr = kzalloc(sizeof(struct scoop_dev), GFP_KERNEL);
+	devptr = kzalloc_obj(struct scoop_dev, GFP_KERNEL);
 	if (!devptr)
 		return -ENOMEM;