From: Zdenek Kabelac <zkabelac@redhat.com>
Date: Tue, 30 Nov 2010 22:32:44 +0000 (+0000)
Subject: Add error path stack traces
X-Git-Tag: v2_02_91~1320
X-Git-Url: https://sourceware.org/git/?a=commitdiff_plain;h=5b8abb1240418a1cdfb45b83aa90babefcd32032;p=lvm2.git

Add error path stack traces

Check for errors from dm_task_set_name() and dm_task_run().
Add stack traces for error paths.
Return 0 if some error is found.
---

diff --git a/libdm/ioctl/libdm-iface.c b/libdm/ioctl/libdm-iface.c
index 8c0115a90..3bc19096b 100644
--- a/libdm/ioctl/libdm-iface.c
+++ b/libdm/ioctl/libdm-iface.c
@@ -1594,8 +1594,15 @@ static int _process_mapper_dir(struct dm_task *dmt)
 		    !strcmp(dirent->d_name, "..") ||
 		    !strcmp(dirent->d_name, "control"))
 			continue;
-		dm_task_set_name(dmt, dirent->d_name);
-		dm_task_run(dmt);
+		if (!dm_task_set_name(dmt, dirent->d_name)) {
+			r = 0;
+			stack;
+			continue; /* try next name */
+		}
+		if (!dm_task_run(dmt)) {
+			r = 0;
+			stack;  /* keep going */
+		}
 	}
 
 	if (closedir(d))