diff --git a/ChangeLog b/ChangeLog
index d863bb32a..6d9ffdcc1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2013-04-24  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/disk/ata.c (grub_ata_real_open): Use grub_error properly.
+
 2013-04-24  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	Add missing video ids to coreboot and ieee1275 video.
diff --git a/grub-core/disk/ata.c b/grub-core/disk/ata.c
index c84d316e1..dada56d00 100644
--- a/grub-core/disk/ata.c
+++ b/grub-core/disk/ata.c
@@ -382,6 +382,8 @@ grub_ata_real_open (int id, int bus)
       err = grub_ata_identify (ata);
       if (err)
 	{
+	  if (!grub_errno)
+	    grub_error (GRUB_ERR_UNKNOWN_DEVICE, "no such ATA device");
 	  grub_free (ata);
 	  return NULL;
 	}