summaryrefslogtreecommitdiffstats
path: root/arch/x86/kernel/io_delay.c
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2008-07-30 19:36:55 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-30 19:36:55 +0200
commitbc588df79ebfb710abc27342fccf336a68ed1216 (patch)
treee50e125eaa6da83fa715704e53c1bde013d1ef8e /arch/x86/kernel/io_delay.c
parentbce7f793daec3e65ec5c5705d2457b81fe7b5725 (diff)
parent15dd859cacf312f606f54502d1f66537a1e5c78c (diff)
Merge branch 'x86/core' into x86/xsave
Diffstat (limited to 'arch/x86/kernel/io_delay.c')
-rw-r--r--arch/x86/kernel/io_delay.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/io_delay.c b/arch/x86/kernel/io_delay.c
index 5921e5f0a64..1c3a66a67f8 100644
--- 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"))