1 files changed, 7 insertions, 3 deletions

diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index f432d4833a12..039a8d4aaf62 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -1720,12 +1720,16 @@ static int __init parse_lapic_timer_c2_ok(char *arg)
 }
 early_param("lapic_timer_c2_ok", parse_lapic_timer_c2_ok);
 
-static int __init apic_set_verbosity(char *str)
+static int __init apic_set_verbosity(char *arg)
 {
-        if (strcmp("debug", str) == 0)
+        if (!arg)
+                return -EINVAL;
+
+        if (strcmp(arg, "debug") == 0)
                 apic_verbosity = APIC_DEBUG;
-        else if (strcmp("verbose", str) == 0)
+        else if (strcmp(arg, "verbose") == 0)
                 apic_verbosity = APIC_VERBOSE;
+
         return 0;
 }
 early_param("apic", apic_set_verbosity);