From: Yinghai Lu <yhlu.kernel@gmail.com>
Date: Wed, 2 Jul 2008 03:04:10 +0000 (-0700)
Subject: x86: do not printout if we do not find setup_data
X-Git-Tag: accepted/tizen/common/20141203.182822~21532^2~94
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d9a81b4411d53196c4535c3a1258cb03d945c718;p=platform%2Fkernel%2Flinux-arm64.git

x86: do not printout if we do not find setup_data

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

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index b346989..4ac01d0 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -399,6 +399,7 @@ static void __init reserve_setup_data(void)
 	struct setup_data *data;
 	u64 pa_data;
 	char buf[32];
+	int found = 0;
 
 	if (boot_params.hdr.version < 0x0209)
 		return;
@@ -409,9 +410,13 @@ static void __init reserve_setup_data(void)
 		reserve_early(pa_data, pa_data+sizeof(*data)+data->len, buf);
 		e820_update_range(pa_data, sizeof(*data)+data->len,
 			 E820_RAM, E820_RESERVED_KERN);
+		found = 1;
 		pa_data = data->next;
 		early_iounmap(data, sizeof(*data));
 	}
+	if (!found)
+		return;
+
 	sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
 	printk(KERN_INFO "extended physical RAM map:\n");
 	e820_print_map("reserve setup_data");