3 files changed, 8 insertions, 8 deletions
diff --git a/kern/mutex/mutex_adaptive.c b/kern/mutex/mutex_adaptive.c
index db92f9d5..b2af4561 100644
--- a/kern/mutex/mutex_adaptive.c
+++ b/kern/mutex/mutex_adaptive.c
@@ -16,13 +16,13 @@
  */
 
 #include <assert.h>
+#include <errno.h>
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include <kern/atomic.h>
 #include <kern/clock.h>
-#include <kern/error.h>
 #include <kern/init.h>
 #include <kern/mutex.h>
 #include <kern/mutex_types.h>
@@ -152,7 +152,7 @@ mutex_adaptive_lock_slow_common(struct mutex *mutex, bool timed, uint64_t ticks)
                 mutex_adaptive_inc_sc(MUTEX_ADAPTIVE_SC_SPINS);
 
                 if (timed && clock_time_occurred(ticks, clock_get_time())) {
-                    error = ERROR_TIMEDOUT;
+                    error = ETIMEDOUT;
                     break;
                 }
 
diff --git a/kern/mutex/mutex_adaptive_i.h b/kern/mutex/mutex_adaptive_i.h
index ce2ac4f2..05e97640 100644
--- a/kern/mutex/mutex_adaptive_i.h
+++ b/kern/mutex/mutex_adaptive_i.h
@@ -24,10 +24,10 @@
 #endif
 
 #include <assert.h>
+#include <errno.h>
 #include <stdint.h>
 
 #include <kern/atomic.h>
-#include <kern/error.h>
 #include <kern/init.h>
 #include <kern/macros.h>
 #include <kern/mutex_types.h>
@@ -58,7 +58,7 @@ mutex_adaptive_lock_fast(struct mutex *mutex)
     owner = atomic_cas_acquire(&mutex->owner, 0, (uintptr_t)thread_self());
 
     if (unlikely(owner != 0)) {
-        return ERROR_BUSY;
+        return EBUSY;
     }
 
     return 0;
@@ -72,7 +72,7 @@ mutex_adaptive_unlock_fast(struct mutex *mutex)
     owner = atomic_cas_release(&mutex->owner, (uintptr_t)thread_self(), 0);
 
     if (unlikely(owner & MUTEX_ADAPTIVE_CONTENDED)) {
-        return ERROR_BUSY;
+        return EBUSY;
     }
 
     return 0;
diff --git a/kern/mutex/mutex_plain_i.h b/kern/mutex/mutex_plain_i.h
index 0c58174b..d28fd92b 100644
--- a/kern/mutex/mutex_plain_i.h
+++ b/kern/mutex/mutex_plain_i.h
@@ -24,10 +24,10 @@
 #endif
 
 #include <assert.h>
+#include <errno.h>
 #include <stdint.h>
 
 #include <kern/atomic.h>
-#include <kern/error.h>
 #include <kern/init.h>
 #include <kern/mutex_types.h>
 
@@ -52,7 +52,7 @@ mutex_plain_lock_fast(struct mutex *mutex)
     state = atomic_cas_acquire(&mutex->state, MUTEX_UNLOCKED, MUTEX_LOCKED);
 
     if (unlikely(state != MUTEX_UNLOCKED)) {
-        return ERROR_BUSY;
+        return EBUSY;
     }
 
     return 0;
@@ -66,7 +66,7 @@ mutex_plain_unlock_fast(struct mutex *mutex)
     state = atomic_swap_release(&mutex->state, MUTEX_UNLOCKED);
 
     if (unlikely(state == MUTEX_CONTENDED)) {
-        return ERROR_BUSY;
+        return EBUSY;
     }
 
     return 0;