__register_binfmt() made void

Just don't pass NULL to it - nobody does, anyway.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/alpha/kernel/binfmt_loader.c

@@ -46,6 +46,7 @@ static struct linux_binfmt loader_format = {
 
 static int __init init_loader_binfmt(void)
 {
-	return insert_binfmt(&loader_format);
+	insert_binfmt(&loader_format);
+	return 0;
 }
 arch_initcall(init_loader_binfmt);

arch/x86/ia32/ia32_aout.c

@@ -519,7 +519,8 @@ static int load_aout_library(struct file *file)
 
 static int __init init_aout_binfmt(void)
 {
-	return register_binfmt(&aout_format);
+	register_binfmt(&aout_format);
+	return 0;
 }
 
 static void __exit exit_aout_binfmt(void)

fs/binfmt_aout.c

@@ -454,7 +454,8 @@ static int load_aout_library(struct file *file)
 
 static int __init init_aout_binfmt(void)
 {
-	return register_binfmt(&aout_format);
+	register_binfmt(&aout_format);
+	return 0;
 }
 
 static void __exit exit_aout_binfmt(void)

fs/binfmt_elf.c

@@ -2077,7 +2077,8 @@ static int elf_core_dump(struct coredump_params *cprm)
 
 static int __init init_elf_binfmt(void)
 {
-	return register_binfmt(&elf_format);
+	register_binfmt(&elf_format);
+	return 0;
 }
 
 static void __exit exit_elf_binfmt(void)

fs/binfmt_elf_fdpic.c

@@ -91,7 +91,8 @@ static struct linux_binfmt elf_fdpic_format = {
 
 static int __init init_elf_fdpic_binfmt(void)
 {
-	return register_binfmt(&elf_fdpic_format);
+	register_binfmt(&elf_fdpic_format);
+	return 0;
 }
 
 static void __exit exit_elf_fdpic_binfmt(void)

fs/binfmt_em86.c

@@ -100,7 +100,8 @@ static struct linux_binfmt em86_format = {
 
 static int __init init_em86_binfmt(void)
 {
-	return register_binfmt(&em86_format);
+	register_binfmt(&em86_format);
+	return 0;
 }
 
 static void __exit exit_em86_binfmt(void)

fs/binfmt_flat.c

@@ -950,7 +950,8 @@ static int load_flat_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 
 static int __init init_flat_binfmt(void)
 {
-	return register_binfmt(&flat_format);
+	register_binfmt(&flat_format);
+	return 0;
 }
 
 /****************************************************************************/

fs/binfmt_misc.c

@@ -726,11 +726,8 @@ static struct file_system_type bm_fs_type = {
 static int __init init_misc_binfmt(void)
 {
 	int err = register_filesystem(&bm_fs_type);
-	if (!err) {
-		err = insert_binfmt(&misc_format);
-		if (err)
-			unregister_filesystem(&bm_fs_type);
-	}
+	if (!err)
+		insert_binfmt(&misc_format);
 	return err;
 }
 

fs/binfmt_script.c

@@ -105,7 +105,8 @@ static struct linux_binfmt script_format = {
 
 static int __init init_script_binfmt(void)
 {
-	return register_binfmt(&script_format);
+	register_binfmt(&script_format);
+	return 0;
 }
 
 static void __exit exit_script_binfmt(void)

fs/binfmt_som.c

@@ -289,7 +289,8 @@ static int load_som_library(struct file *f)
 
 static int __init init_som_binfmt(void)
 {
-	return register_binfmt(&som_format);
+	register_binfmt(&som_format);
+	return 0;
 }
 
 static void __exit exit_som_binfmt(void)

fs/exec.c

@@ -79,15 +79,13 @@ static atomic_t call_count = ATOMIC_INIT(1);
 static LIST_HEAD(formats);
 static DEFINE_RWLOCK(binfmt_lock);
 
-int __register_binfmt(struct linux_binfmt * fmt, int insert)
+void __register_binfmt(struct linux_binfmt * fmt, int insert)
 {
-	if (!fmt)
-		return -EINVAL;
+	BUG_ON(!fmt);
 	write_lock(&binfmt_lock);
 	insert ? list_add(&fmt->lh, &formats) :
 		 list_add_tail(&fmt->lh, &formats);
 	write_unlock(&binfmt_lock);
-	return 0;	
 }
 
 EXPORT_SYMBOL(__register_binfmt);

include/linux/binfmts.h

@@ -92,17 +92,17 @@ struct linux_binfmt {
 	unsigned long min_coredump;	/* minimal dump size */
 };
 
-extern int __register_binfmt(struct linux_binfmt *fmt, int insert);
+extern void __register_binfmt(struct linux_binfmt *fmt, int insert);
 
 /* Registration of default binfmt handlers */
-static inline int register_binfmt(struct linux_binfmt *fmt)
+static inline void register_binfmt(struct linux_binfmt *fmt)
 {
-	return __register_binfmt(fmt, 0);
+	__register_binfmt(fmt, 0);
 }
 /* Same as above, but adds a new binfmt at the top of the list */
-static inline int insert_binfmt(struct linux_binfmt *fmt)
+static inline void insert_binfmt(struct linux_binfmt *fmt)
 {
-	return __register_binfmt(fmt, 1);
+	__register_binfmt(fmt, 1);
 }
 
 extern void unregister_binfmt(struct linux_binfmt *);