From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 30 Jan 2008 12:34:05 +0000 (+0100)
Subject: x86: use remove_vm_are in ioremap_32 error path
X-Git-Tag: Ubuntu-goldfish-3.4.0-4.27~21097^2~61
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=e4c1b977f0036c00ebabb60375cb63d0de9d43fa;p=mirror_ubuntu-zesty-kernel.git

x86: use remove_vm_are in ioremap_32 error path

When ioremap_page_range fails, then we can use remove_vm_area instead
of vunmap safely.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 5273ac4aa96a..4d919c37d1d6 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -118,7 +118,7 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
 	addr = (void __iomem *) area->addr;
 	if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
 			       phys_addr, pgprot)) {
-		vunmap((void __force *) addr);
+		remove_vm_area((void *)(PAGE_MASK & (unsigned long) addr));
 		return NULL;
 	}