[Cluster-devel] [PATCH 8/8] [GFS2] gfs2_dir_read_data(): fix uninitialized variable usage

[Steven Whitehouse]

>From b7d8ac3e1779c30ddef0a8f38042076c5007a23d Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk at stusta.de>
Date: Thu, 19 Oct 2006 16:02:07 +0200
Subject: [GFS2] gfs2_dir_read_data(): fix uninitialized variable usage

In the "if (extlen)" case, "bh" was used uninitialized.

This patch changes the code to what seems to have been intended.

Spotted by the Coverity checker.

This patch also removes a pointless "bh = NULL" asignment (the variable
is never accessed again after this point).

Signed-off-by: Adrian Bunk <bunk at stusta.de>
Signed-off-by: Steven Whitehouse <swhiteho at redhat.com>
---
 fs/gfs2/dir.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index ead7df0..e24af28 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -315,8 +315,7 @@ static int gfs2_dir_read_data(struct gfs
 			if (!ra)
 				extlen = 1;
 			bh = gfs2_meta_ra(ip->i_gl, dblock, extlen);
-		}
-		if (!bh) {
+		} else {
 			error = gfs2_meta_read(ip->i_gl, dblock, DIO_WAIT, &bh);
 			if (error)
 				goto fail;
@@ -330,7 +329,6 @@ static int gfs2_dir_read_data(struct gfs
 		extlen--;
 		memcpy(buf, bh->b_data + o, amount);
 		brelse(bh);
-		bh = NULL;
 		buf += amount;
 		copied += amount;
 		lblock++;
-- 
1.4.1