__register_binfmt() made void

Just don't pass NULL to it - nobody does, anyway.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index 1ff9405..a543364 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -454,7 +454,8 @@
 
 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)
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 07d096c..f8ac425 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -2077,7 +2077,8 @@
 
 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)
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 30745f4..e7afcb6 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -91,7 +91,8 @@
 
 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)
diff --git a/fs/binfmt_em86.c b/fs/binfmt_em86.c
index b8e8b0a..2790c7e 100644
--- a/fs/binfmt_em86.c
+++ b/fs/binfmt_em86.c
@@ -100,7 +100,8 @@
 
 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)
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 1bffbe0..68affab 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -950,7 +950,8 @@
 
 static int __init init_flat_binfmt(void)
 {
-	return register_binfmt(&flat_format);
+	register_binfmt(&flat_format);
+	return 0;
 }
 
 /****************************************************************************/
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index a9198df..1ffb603 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -726,11 +726,8 @@
 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;
 }
 
diff --git a/fs/binfmt_script.c b/fs/binfmt_script.c
index 396a988..d3b8c1f 100644
--- a/fs/binfmt_script.c
+++ b/fs/binfmt_script.c
@@ -105,7 +105,8 @@
 
 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)
diff --git a/fs/binfmt_som.c b/fs/binfmt_som.c
index cc8560f..ec15972 100644
--- a/fs/binfmt_som.c
+++ b/fs/binfmt_som.c
@@ -289,7 +289,8 @@
 
 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)
diff --git a/fs/exec.c b/fs/exec.c
index 153dee1..2c5ae33 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -79,15 +79,13 @@
 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);