dyn_array: fix typo

Andrew found the typo could break some platforms.

also fix a checkpatch warning.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

init/dyn_array.c

@@ -54,7 +54,7 @@ void __init pre_alloc_dyn_array(void)
 			da->init_work(da);
 	}
 #else
-#ifdef CONFIF_GENERIC_HARDIRQS
+#ifdef CONFIG_GENERIC_HARDIRQS
 	unsigned int i;
 
 	for (i = 0; i < NR_IRQS; i++)
@@ -117,9 +117,8 @@ void __init per_cpu_alloc_dyn_array(int cpu, char *ptr)
 
 		phys += size;
 
-		if (da->init_work) {
+		if (da->init_work)
 			da->init_work(da);
-		}
 	}
 #endif
 }