ACPI: replace strlen("string") with sizeof("string") -1

...both give the number of chars in the string
without the '\0', as strncmp() wants,
but sizeof() is compile-time.

Reported-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Pavel Vasilyev <pavel@pavlinux.ru>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 240a24400976..7c3f98ba4afe 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -173,7 +173,7 @@ static int param_set_trace_state(const char *val, struct kernel_param *kp)
 {
         int result = 0;
 
-        if (!strncmp(val, "enable", strlen("enable"))) {
+        if (!strncmp(val, "enable", sizeof("enable") - 1)) {
                 result = acpi_debug_trace(trace_method_name, trace_debug_level,
                                           trace_debug_layer, 0);
                 if (result)
@@ -181,7 +181,7 @@ static int param_set_trace_state(const char *val, struct kernel_param *kp)
                 goto exit;
         }
 
-        if (!strncmp(val, "disable", strlen("disable"))) {
+        if (!strncmp(val, "disable", sizeof("disable") - 1)) {
                 int name = 0;
                 result = acpi_debug_trace((char *)&name, trace_debug_level,
                                           trace_debug_layer, 0);