kernel: dev: Use errno.h error codes

This commit makes the hpet_sleep() function return either
EXIT_SUCCESS or EXIT_FAILURE instead of hardcoded constants.

Signed-off-by: sigsegv7 <ian@vegaa.systems>

1 files changed, 3 insertions, 2 deletions

diff --git a/sys/dev/timer/hpet.c b/sys/dev/timer/hpet.c
index f5b1621..08c4432 100644
--- a/sys/dev/timer/hpet.c
+++ b/sys/dev/timer/hpet.c
@@ -32,6 +32,7 @@
 #include <sys/panic.h>
 #include <sys/cdefs.h>
 #include <sys/timer.h>
+#include <sys/errno.h>
 #include <sys/syslog.h>
 #include <sys/mmio.h>
 
@@ -107,7 +108,7 @@ hpet_sleep(uint64_t n, uint64_t units)
 
     /* Don't even try if faulty, would probably cause deadlock */
     if (is_faulty) {
-        return 1;
+        return EXIT_FAILURE;
     }
 
     caps = hpet_read(HPET_REG_CAPS);
@@ -120,7 +121,7 @@ hpet_sleep(uint64_t n, uint64_t units)
         spinwait_hint();
     }
 
-    return 0;
+    return EXIT_SUCCESS;
 }
 
 int