Index: kernel/generic/src/syscall/copy.c
===================================================================
--- kernel/generic/src/syscall/copy.c	(revision 14795627234b341479d2a8da2a14117d97de69cc)
+++ kernel/generic/src/syscall/copy.c	(revision a1d7b4b64d80fd99178eff41903b8d4810473657)
@@ -56,5 +56,5 @@
  * @param size Size of the data to be copied.
  *
- * @return 0 on success or error code from @ref errno.h.
+ * @return EOK on success or error code from @ref errno.h.
  */
 int copy_from_uspace(void *dst, const void *uspace_src, size_t size)
@@ -94,5 +94,5 @@
 
 	interrupts_restore(ipl);
-	return !rc ? EPERM : 0;
+	return !rc ? EPERM : EOK;
 }