Signed-off-by: Christoph Hellwig <hch@lst.de>

Index: sheepdog/sheep/cluster/accord.c
===================================================================
--- sheepdog.orig/sheep/cluster/accord.c	2012-04-25 10:05:50.604164601 +0200
+++ sheepdog/sheep/cluster/accord.c	2012-04-25 10:05:59.652164831 +0200
@@ -489,6 +489,10 @@ static int accord_init(const char *optio
 	}
 
 	acrd_wq = init_work_queue(1);
+	if (!acrd_wq)
+		eprintf("failed to create accord workqueue: %m\n");
+		return -1;
+	}
 
 	pthread_cond_wait(&start_cond, &start_lock);
 	pthread_mutex_unlock(&start_lock);
Index: sheepdog/sheep/cluster/corosync.c
===================================================================
--- sheepdog.orig/sheep/cluster/corosync.c	2012-04-25 10:05:50.604164601 +0200
+++ sheepdog/sheep/cluster/corosync.c	2012-04-25 10:05:59.652164831 +0200
@@ -657,6 +657,10 @@ static int corosync_init(const char *opt
 	}
 
 	corosync_block_wq = init_work_queue(1);
+	if (!corosync_block_wq) {
+		eprintf("failed to create corosync workqueue: %m\n");
+		return -1;
+	}
 
 	return fd;
 }
Index: sheepdog/sheep/cluster/local.c
===================================================================
--- sheepdog.orig/sheep/cluster/local.c	2012-04-25 10:05:50.604164601 +0200
+++ sheepdog/sheep/cluster/local.c	2012-04-25 10:05:59.652164831 +0200
@@ -314,6 +314,10 @@ static int local_init(const char *option
 	add_timer(&t, 1);
 
 	local_block_wq = init_work_queue(1);
+	if (!local_block_wq) {
+		eprintf("failed to create local workqueue: %m\n");
+		return -1;
+	}
 
 	return sigfd;
 }
Index: sheepdog/sheep/cluster/zookeeper.c
===================================================================
--- sheepdog.orig/sheep/cluster/zookeeper.c	2012-04-25 10:05:50.604164601 +0200
+++ sheepdog/sheep/cluster/zookeeper.c	2012-04-25 10:05:59.652164831 +0200
@@ -398,6 +398,10 @@ static int zk_init(const char *option, u
 	}
 
 	zk_block_wq = init_work_queue(1);
+	if (!zk_block_wq) {
+		eprintf("failed to create zookeeper workqueue: %m\n");
+		return -1;
+	}
 
 	return efd;
 }