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| author | Ingo Molnar <mingo@elte.hu> | 2008-05-27 09:56:49 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-06-04 13:11:47 +0200 |
| commit | 226e9a93a253b7d8811b5ed9ac671c6c5a728022 (patch) | |
| tree | b1dbd2665c8025f258f292727e45ae6c005b2d6d /arch/x86/mm/ioremap.c | |
| parent | e8a496ac8cd00cabbdaa373db4818a9ad19a1c5a (diff) | |
| download | kernel_samsung_smdk4412-226e9a93a253b7d8811b5ed9ac671c6c5a728022.zip kernel_samsung_smdk4412-226e9a93a253b7d8811b5ed9ac671c6c5a728022.tar.gz kernel_samsung_smdk4412-226e9a93a253b7d8811b5ed9ac671c6c5a728022.tar.bz2 | |
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>
Diffstat (limited to 'arch/x86/mm/ioremap.c')
| -rw-r--r-- | arch/x86/mm/ioremap.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 71bb315..2b2bb3f 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -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, |