Make unregister_binfmt() return void

list_del() hardly can fail, so checking for return value is pointless
(and current code always return 0).

Nobody really cared that return value anyway.

Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/exec.c b/fs/exec.c
index 65825bd..550ae9b 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -81,12 +81,11 @@
 
 EXPORT_SYMBOL(register_binfmt);
 
-int unregister_binfmt(struct linux_binfmt * fmt)
+void unregister_binfmt(struct linux_binfmt * fmt)
 {
 	write_lock(&binfmt_lock);
 	list_del(&fmt->lh);
 	write_unlock(&binfmt_lock);
-	return 0;
 }
 
 EXPORT_SYMBOL(unregister_binfmt);