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authorCyrill Gorcunov <gorcunov@gmail.com>2008-07-05 15:53:38 +0400
committerIngo Molnar <mingo@elte.hu>2008-07-09 13:57:55 +0200
commit4d8cc874d7ed43eda72765e9c0e141e170fee4f3 (patch)
tree83fe98abe8f3c15b20726b598d0aef37194a83b2 /arch/x86/kernel/smpboot.c
parentx86: io delay - add checking for NULL early param (diff)
downloadlinux-dev-4d8cc874d7ed43eda72765e9c0e141e170fee4f3.tar.xz
linux-dev-4d8cc874d7ed43eda72765e9c0e141e170fee4f3.zip
x86: smpboot maxcpus - add checking for NULL early param
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>
Diffstat (limited to 'arch/x86/kernel/smpboot.c')
-rw-r--r--arch/x86/kernel/smpboot.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index fd933b5465b6..e47bfac70c38 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1452,7 +1452,8 @@ static int __init parse_maxcpus(char *arg)
{
extern unsigned int maxcpus;
- maxcpus = simple_strtoul(arg, NULL, 0);
+ if (arg)
+ maxcpus = simple_strtoul(arg, NULL, 0);
return 0;
}
early_param("maxcpus", parse_maxcpus);