kernel/watchdog.c: is_hardlockup can be boolean

Make is_hardlockup return bool to improve readability due to this
particular function only using either one or zero as its return value.

No functional change.

Signed-off-by: Yaowei Bai <bywxiaobai@163.com>
Reviewed-by: Aaron Tomlin <atomlin@redhat.com>
Acked-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 64ed1c37bd1fdc6c2874f797e987b8bd4c4c5308..568ba64b22d61ea15efb3aa279488206aaca20f0 100644 (file)
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -263,15 +263,15 @@ void touch_softlockup_watchdog_sync(void)
 
 #ifdef CONFIG_HARDLOCKUP_DETECTOR
 /* watchdog detector functions */
-static int is_hardlockup(void)
+static bool is_hardlockup(void)
 {
        unsigned long hrint = __this_cpu_read(hrtimer_interrupts);
 
        if (__this_cpu_read(hrtimer_interrupts_saved) == hrint)
-               return 1;
+               return true;
 
        __this_cpu_write(hrtimer_interrupts_saved, hrint);
-       return 0;
+       return false;
 }
 #endif