[XFS] Rework code snippets slightly to remove remaining recent-gcc

warnings.

SGI-PV: 904196
SGI-Modid: xfs-linux-melb:xfs-kern:26364a
Signed-off-by: Nathan Scott <nathans@sgi.com>

fs/xfs/xfs_inode.c

@@ -1961,9 +1961,9 @@ xfs_iunlink_remove(
 	xfs_agino_t	agino;
 	xfs_agino_t	next_agino;
 	xfs_buf_t	*last_ibp;
-	xfs_dinode_t	*last_dip;
+	xfs_dinode_t	*last_dip = NULL;
 	short		bucket_index;
-	int		offset, last_offset;
+	int		offset, last_offset = 0;
 	int		error;
 	int		agi_ok;
 

fs/xfs/xfs_log_recover.c

@@ -990,6 +990,8 @@ xlog_find_zeroed(
 	xfs_daddr_t     num_scan_bblks;
 	int	        error, log_bbnum = log->l_logBBsize;
 
+	*blk_no = 0;
+
 	/* check totally zeroed log */
 	bp = xlog_get_bp(log, 1);
 	if (!bp)

fs/xfs/xfs_mount.c

@@ -2026,7 +2026,7 @@ xfs_icsb_balance_counter(
 	xfs_sb_field_t  field,
 	int		flags)
 {
-	uint64_t	count, resid = 0;
+	uint64_t	count, resid;
 	int		weight = num_online_cpus();
 	int		s;
 
@@ -2058,6 +2058,7 @@ xfs_icsb_balance_counter(
 		break;
 	default:
 		BUG();
+		count = resid = 0;	/* quiet, gcc */
 		break;
 	}