x86: remove unnecessary memset()

No need to clear the memory allocated by alloc_bootmem().
It is already filled with zero.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index 6e383e1..616c53a 100644 (file)
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -2315,7 +2315,6 @@ static struct resource * __init ioapic_setup_resources(void)
        res = (void *)mem;
 
        if (mem != NULL) {
-               memset(mem, 0, n);
                mem += sizeof(struct resource) * nr_ioapics;
 
                for (i = 0; i < nr_ioapics; i++) {