From: Baoquan He <bhe@redhat.com>
Date: Fri, 12 Aug 2016 07:21:47 +0000 (+0800)
Subject: x86/apic, ACPI: Fix incorrect assignment when handling apic/x2apic entries
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=31b02dd718712f4c45afbeea7fbd187ecb1b202c;p=linux-beck.git

x86/apic, ACPI: Fix incorrect assignment when handling apic/x2apic entries

By pure accident the bug makes no functional difference, because the only
expression where we are using these values is (!count && !x2count), in which
the variables are interchangeable, but it makes sense to fix the bug
nevertheless.

Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-acpi@vger.kernel.org
Cc: rjw@rjwysocki.net
Link: http://lkml.kernel.org/r/1470986507-24191-1-git-send-email-bhe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 2087bea6b461..1ad5fe213043 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -1018,8 +1018,8 @@ static int __init acpi_parse_madt_lapic_entries(void)
 			return ret;
 		}
 
-		x2count = madt_proc[0].count;
-		count = madt_proc[1].count;
+		count = madt_proc[0].count;
+		x2count = madt_proc[1].count;
 	}
 	if (!count && !x2count) {
 		printk(KERN_ERR PREFIX "No LAPIC entries present\n");