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x86: ioremap fix failing nesting check

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Mika Kukkonen noticed that the nesting check in early_iounmap() is not
actually done.

Reported-by: Mika Kukkonen <mikukkon@srv1-m700-lanp.koti>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: torvalds@linux-foundation.org
Cc: arjan@linux.intel.com
Cc: mikukkon@iki.fi
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Ingo Molnar 2008-05-27 09:56:49 +02:00 committed by Thomas Gleixner
parent e8a496ac8c
commit 226e9a93a2
1 changed files with 3 additions and 2 deletions
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5
arch/x86/mm/ioremap.c
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@ -593,10 +593,11 @@ void __init early_iounmap(void *addr, unsigned long size)
unsigned long offset;
unsigned int nrpages;
enum fixed_addresses idx;
unsigned int nesting;
int nesting;
nesting = --early_ioremap_nested;
WARN_ON(nesting < 0);
if (WARN_ON(nesting < 0))
return;
if (early_ioremap_debug) {
printk(KERN_INFO "early_iounmap(%p, %08lx) [%d]\n", addr,