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authorCyrill Gorcunov <gorcunov@gmail.com>2008-07-05 15:53:36 +0400
committerIngo Molnar <mingo@elte.hu>2008-07-09 13:57:53 +0200
commitab6bc3e343fbe3be4a0f67225e849d0db6b4b7ac (patch)
treee68fd4050eeb8e004152c71c07c6cd6c18a11a91 /arch/x86/kernel/process.c
parent84e65b0a84a2c856bef36f13d122047678408b0a (diff)
x86: idle process - 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/process.c')
-rw-r--r--arch/x86/kernel/process.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index ba370dc8685..58325a6604a 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -164,6 +164,9 @@ void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
static int __init idle_setup(char *str)
{
+ if (!str)
+ return -EINVAL;
+
if (!strcmp(str, "poll")) {
printk("using polling idle threads.\n");
pm_idle = poll_idle;