[lvm-devel] [PATCH 11/29] Add stack trace for error path

[Zdenek Kabelac]

If dm_task_set_cookie fail - print stack trace, but keep going on.

Signed-off-by: Zdenek Kabelac <zkabelac at redhat.com>
---
 libdm/ioctl/libdm-iface.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/libdm/ioctl/libdm-iface.c b/libdm/ioctl/libdm-iface.c
index 147eec2..431aa8f 100644
--- a/libdm/ioctl/libdm-iface.c
+++ b/libdm/ioctl/libdm-iface.c
@@ -1776,9 +1776,10 @@ static int _create_and_load_v4(struct dm_task *dmt)
 	if (dmt->cookie_set) {
 		cookie = (dmt->event_nr & ~DM_UDEV_FLAGS_MASK) |
 			 (DM_COOKIE_MAGIC << DM_UDEV_FLAGS_SHIFT);
-		dm_task_set_cookie(dmt, &cookie,
-				   (dmt->event_nr & DM_UDEV_FLAGS_MASK) >>
-				    DM_UDEV_FLAGS_SHIFT);
+		if (!dm_task_set_cookie(dmt, &cookie,
+					(dmt->event_nr & DM_UDEV_FLAGS_MASK) >>
+					DM_UDEV_FLAGS_SHIFT))
+                        stack; /* keep going */
 	}
 
 	if (!dm_task_run(dmt))
-- 
1.7.3.2