kernel: fix spelling errors

Fix spelling errors found in comment of the kernel source code.

Signed-off-by: Nguyen Minh Thien <nguyenmthien@live.com>

kernel/idle.c

@@ -75,7 +75,7 @@ void idle(void *unused1, void *unused2, void *unused3)
 		 *
 		 * This function is entered with interrupts disabled.
 		 * If a low power state was entered, then the hook
-		 * function should enable inerrupts before exiting.
+		 * function should enable interrupts before exiting.
 		 * This is because the kernel does not do its own idle
 		 * processing in those cases i.e. skips k_cpu_idle().
 		 * The kernel's idle processing re-enables interrupts

kernel/include/kernel_arch_interface.h

@@ -192,7 +192,7 @@ int arch_float_disable(struct k_thread *thread);
  *
  * The function is used to enable the preservation of floating
  * point context information for a particular thread.
- * This API depends on each architecture implimentation. If the architecture
+ * This API depends on each architecture implementation. If the architecture
  * does not support enabling, this API will always be failed.
  *
  * The @a options parameter indicates which floating point register sets will

kernel/include/ksched.h

@@ -375,8 +375,8 @@ int z_sched_wait(struct k_spinlock *lock, k_spinlock_key_t key,
  * waiting thread while holding sched_spinlock. This can be useful for routines
  * that need to operate on multiple waiting threads.
  *
- * CAUTION! As a wait queue is of indeterminant length, the scheduler will be
+ * CAUTION! As a wait queue is of indeterminate length, the scheduler will be
- * locked for an indeterminant amount of time. This may impact system
+ * locked for an indeterminate amount of time. This may impact system
  * performance. As such, care must be taken when using both this function and
  * the specified callback.
  *

kernel/mailbox.c

@@ -452,7 +452,7 @@ static int init_mailbox_obj_core_list(void)
 	z_obj_type_init(&obj_type_mailbox, K_OBJ_TYPE_MBOX_ID,
 			offsetof(struct k_mbox, obj_core));
 
-	/* Initialize and link satically defined mailboxes */
+	/* Initialize and link statically defined mailboxes */
 
 	STRUCT_SECTION_FOREACH(k_mbox, mbox) {
 		k_obj_core_init_and_link(K_OBJ_CORE(mbox), &obj_type_mailbox);

kernel/mutex.c

@@ -301,7 +301,7 @@ static int init_mutex_obj_core_list(void)
 	z_obj_type_init(&obj_type_mutex, K_OBJ_TYPE_MUTEX_ID,
 			offsetof(struct k_mutex, obj_core));
 
-	/* Initialize and link statically defined mutexs */
+	/* Initialize and link statically defined mutexes */
 
 	STRUCT_SECTION_FOREACH(k_mutex, mutex) {
 		k_obj_core_init_and_link(K_OBJ_CORE(mutex), &obj_type_mutex);

kernel/userspace.c

@@ -551,7 +551,7 @@ static void unref_check(struct k_object *ko, uintptr_t index)
 
 	/* This object has no more references. Some objects may have
 	 * dynamically allocated resources, require cleanup, or need to be
-	 * marked as uninitailized when all references are gone. What
+	 * marked as uninitialized when all references are gone. What
 	 * specifically needs to happen depends on the object type.
 	 */
 	switch (ko->type) {

kernel/work.c

@@ -92,7 +92,7 @@ static inline void init_work_cancel(struct z_work_canceller *canceler,
 	sys_slist_append(&pending_cancels, &canceler->node);
 }
 
-/* Comeplete flushing of a work item.
+/* Complete flushing of a work item.
  *
  * Invoked with work lock held.
  *