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>

diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 240a24400976929c663b9b3f8ce8bafa36435d5f..7c3f98ba4afefd00686fffc36283ad783a3e4798 100644 (file)
--- 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);