From 9f7b6980070f4955cf4fb8db7821c28c2b16ce14 Mon Sep 17 00:00:00 2001
From: Alasdair Kergon <agk@redhat.com>
Date: Wed, 6 Mar 2002 19:42:23 +0000
Subject: [PATCH] Kernel functionality that returns device dependencies (ejt).

---
 libdm/ioctl/libdevmapper.c | 2 +-
 libdm/libdevmapper.h       | 3 ++-
 tools/dmsetup.c            | 3 +++
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/libdm/ioctl/libdevmapper.c b/libdm/ioctl/libdevmapper.c
index 12f511fc5..73525450c 100644
--- a/libdm/ioctl/libdevmapper.c
+++ b/libdm/ioctl/libdevmapper.c
@@ -291,7 +291,7 @@ int dm_task_run(struct dm_task *dmt)
 		break;
 
 	case DM_DEVICE_DEPS:
-		command = DM_DEP;
+		command = DM_DEPS;
 		break;
 
 	case DM_DEVICE_RENAME:
diff --git a/libdm/libdevmapper.h b/libdm/libdevmapper.h
index 3d3cd8e12..33beb4660 100644
--- a/libdm/libdevmapper.h
+++ b/libdm/libdevmapper.h
@@ -9,6 +9,7 @@
 
 #include <inttypes.h>
 #include <sys/types.h>
+#include <linux/types.h>
 
 /*
  * Since it is quite laborious to build the ioctl
@@ -69,7 +70,7 @@ struct dm_info {
 
 struct dm_deps {
 	unsigned int count;
-	dev_t device[0];
+	__kernel_dev_t device[0];
 };
 
 int dm_get_library_version(char *version, size_t size);
diff --git a/tools/dmsetup.c b/tools/dmsetup.c
index a2da75179..b31b26764 100644
--- a/tools/dmsetup.c
+++ b/tools/dmsetup.c
@@ -283,6 +283,9 @@ static int _deps(int argc, char **argv)
 	if (!dm_task_run(dmt))
 		goto out;
 
+	if (!dm_task_get_info(dmt, &info))
+		goto out;
+
 	if (!(deps = dm_task_get_deps(dmt)))
 		goto out;