init/main.c: fix symbol shadows noise

The symbol 'call' is a static symbol used for initcall_debug.  This same
symbol name is used locally by a couple functions and produces the
following sparse warnings:

	warning: symbol 'call' shadows an earlier one

Fix this noise by renaming the local symbols.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

init/main.c

@@ -691,10 +691,10 @@ asmlinkage void __init start_kernel(void)
 static void __init do_ctors(void)
 {
 #ifdef CONFIG_CONSTRUCTORS
-	ctor_fn_t *call = (ctor_fn_t *) __ctors_start;
+	ctor_fn_t *fn = (ctor_fn_t *) __ctors_start;
 
-	for (; call < (ctor_fn_t *) __ctors_end; call++)
-		(*call)();
+	for (; fn < (ctor_fn_t *) __ctors_end; fn++)
+		(*fn)();
 #endif
 }
 
@@ -755,10 +755,10 @@ extern initcall_t __initcall_start[], __initcall_end[], __early_initcall_end[];
 
 static void __init do_initcalls(void)
 {
-	initcall_t *call;
+	initcall_t *fn;
 
-	for (call = __early_initcall_end; call < __initcall_end; call++)
-		do_one_initcall(*call);
+	for (fn = __early_initcall_end; fn < __initcall_end; fn++)
+		do_one_initcall(*fn);
 
 	/* Make sure there is no pending stuff from the initcall sequence */
 	flush_scheduled_work();
@@ -785,10 +785,10 @@ static void __init do_basic_setup(void)
 
 static void __init do_pre_smp_initcalls(void)
 {
-	initcall_t *call;
+	initcall_t *fn;
 
-	for (call = __initcall_start; call < __early_initcall_end; call++)
-		do_one_initcall(*call);
+	for (fn = __initcall_start; fn < __early_initcall_end; fn++)
+		do_one_initcall(*fn);
 }
 
 static void run_init_process(char *init_filename)