Commit 226e9a93 authored May 27, 2008 by Ingo Molnar Committed by Thomas Gleixner Jun 04, 2008

x86: ioremap fix failing nesting check



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>

parent e8a496ac

arch/x86/mm/ioremap.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -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,

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