GFS2: Improve error handling in inode allocation

A little while back, block allocation was given some improved
error handling which meant that -EIO was returned in the case
of there being a problem in the resource group data. In addition
a message is printed explaning what went wrong and how to fix it.
This extends that error handling so that it also covers inode
allocation too.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 2f94bd7..f9b4fe8 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -731,7 +731,7 @@
 	if (error)
 		goto out_ipreserv;
 
-	*no_addr = gfs2_alloc_di(dip, generation);
+	error = gfs2_alloc_di(dip, no_addr, generation);
 
 	gfs2_trans_end(sdp);