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[patch 06/25] x86: io delay - add checking for NULL early param

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From: Greg KH <gregkh@...>
To: <linux-kernel@...>, <stable@...>, Cyrill Gorcunov <gorcunov@...>
Cc: Justin Forbes <jmforbes@...>, Zwane Mwaikambo <zwane@...>, Theodore Ts'o <tytso@...>, Randy Dunlap <rdunlap@...>, Dave Jones <davej@...>, Chuck Wolber <chuckw@...>, Chris Wedgwood <reviews@...>, Michael Krufky <mkrufky@...>, Chuck Ebbert <cebbert@...>, Domenico Andreoli <cavokz@...>, Willy Tarreau <w@...>, Rodrigo Rubira Branco <rbranco@...>, Jake Edge <jake@...>, Eugene Teo <eteo@...>, <torvalds@...>, <akpm@...>, <alan@...>, <andi@...>, Ingo Molnar <mingo@...>, Oliver Pinter <oliver.pntr@...>
Subject: [patch 06/25] x86: io delay - add checking for NULL early param
Date: Monday, August 4, 2008 - 5:29 pm

2.6.26-stable review patch.  If anyone has any objections, please let us
know.

------------------

From: Cyrill Gorcunov <gorcunov@gmail.com>

[ Upstream commit d6cd7effcc5e0047faf15ab0a54c980f1a616a07 ]

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: akpm@linux-foundation.org
Cc: andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
CC: Oliver Pinter <oliver.pntr@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 arch/x86/kernel/io_delay.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/arch/x86/kernel/io_delay.c
+++ b/arch/x86/kernel/io_delay.c
@@ -103,6 +103,9 @@ void __init io_delay_init(void)
 
 static int __init io_delay_param(char *s)
 {
+	if (!s)
+		return -EINVAL;
+
 	if (!strcmp(s, "0x80"))
 		io_delay_type = CONFIG_IO_DELAY_TYPE_0X80;
 	else if (!strcmp(s, "0xed"))

-- 
--
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[patch 00/25] 2.6.26-stable review, Greg KH, (Mon Aug 4, 5:27 pm)
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[patch 06/25] x86: io delay - add checking for NULL early pa..., Greg KH, (Mon Aug 4, 5:29 pm)
[patch 05/25] x86: idle process - add checking for NULL earl..., Greg KH, (Mon Aug 4, 5:29 pm)
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Re: [patch 01/25] ftrace: remove unneeded documentation, Steven Rostedt, (Mon Aug 4, 5:42 pm)
Re: [patch 01/25] ftrace: remove unneeded documentation, Randy Dunlap, (Mon Aug 4, 5:49 pm)
Re: [patch 01/25] ftrace: remove unneeded documentation, Steven Rostedt, (Mon Aug 4, 6:02 pm)
Re: [patch 01/25] ftrace: remove unneeded documentation, Randy Dunlap, (Mon Aug 4, 6:06 pm)
Re: [patch 01/25] ftrace: remove unneeded documentation, Greg KH, (Mon Aug 4, 5:46 pm)
Re: [patch 01/25] ftrace: remove unneeded documentation, Steven Rostedt, (Mon Aug 4, 6:16 pm)