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>

1 files changed, 3 insertions, 3 deletions

diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 64ed1c37bd1f..568ba64b22d6 100644
--- 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